diff --git a/build/html2canvas.js b/build/html2canvas.js
index ac4c00a..d2a85a9 100644
--- a/build/html2canvas.js
+++ b/build/html2canvas.js
@@ -13,6 +13,10 @@ window.html2canvas = function(nodeList, options) {
         window.html2canvas.logging = true;
         window.html2canvas.start = Date.now();
     }
+
+    options.async = typeof(options.async) === "undefined" ? true : options.async;
+    options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
+
     return renderDocument(document, options, window.innerWidth, window.innerHeight).then(function(canvas) {
         if (typeof(options.onrendered) === "function") {
             log("options.onrendered is deprecated, html2canvas returns a Promise containing the canvas");
@@ -23,7 +27,7 @@ window.html2canvas = function(nodeList, options) {
 };
 
 function renderDocument(document, options, windowWidth, windowHeight) {
-    return createWindowClone(document, windowWidth, windowHeight).then(function(container) {
+    return createWindowClone(document, windowWidth, windowHeight, options).then(function(container) {
         log("Document cloned");
         var clonedWindow = container.contentWindow;
         //var element = (nodeList === undefined) ? document.body : nodeList[0];
@@ -36,7 +40,10 @@ function renderDocument(document, options, windowWidth, windowHeight) {
         var renderer = new CanvasRenderer(width, height, imageLoader);
         var parser = new NodeParser(node, renderer, support, imageLoader, options);
         return parser.ready.then(function() {
-            container.parentNode.removeChild(container);
+            log("Finished rendering");
+            if (options.removeContainer) {
+                container.parentNode.removeChild(container);
+            }
             return renderer.canvas;
         });
     });
@@ -62,7 +69,7 @@ function smallImage() {
     return "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
 }
 
-function createWindowClone(ownerDocument, width, height) {
+function createWindowClone(ownerDocument, width, height, options) {
     var documentElement = ownerDocument.documentElement.cloneNode(true),
         container = ownerDocument.createElement("iframe");
 
@@ -74,18 +81,6 @@ function createWindowClone(ownerDocument, width, height) {
     ownerDocument.body.appendChild(container);
 
     return new Promise(function(resolve) {
-        var loadedTimer = function() {
-            /* Chrome doesn't detect relative background-images assigned in style sheets when fetched through getComputedStyle,
-            before a certain time has passed
-             */
-            if (container.contentWindow.getComputedStyle(div, null)['backgroundImage'] !== "none") {
-                documentClone.body.removeChild(div);
-                documentClone.body.removeChild(style);
-                resolve(container);
-            } else {
-                window.setTimeout(loadedTimer, 10);
-            }
-        };
         var documentClone = container.contentWindow.document;
         /* Chrome doesn't detect relative background-images assigned in inline <style> sheets when fetched through getComputedStyle
         if window url is about:blank, we can assign the url to current by writing onto the document
@@ -95,14 +90,10 @@ function createWindowClone(ownerDocument, width, height) {
         documentClone.close();
 
         documentClone.replaceChild(documentClone.adoptNode(documentElement), documentClone.documentElement);
-        container.contentWindow.scrollTo(window.scrollX, window.scrollY);
-        var div = documentClone.createElement("div");
-        div.className = "html2canvas-ready-test";
-        documentClone.body.appendChild(div);
-        var style = documentClone.createElement("style");
-        style.innerHTML = "body div.html2canvas-ready-test { background-image:url(" + smallImage() + "); }";
-        documentClone.body.appendChild(style);
-        window.setTimeout(loadedTimer, 1000);
+        if (options.type === "view") {
+            container.contentWindow.scrollTo(window.scrollX, window.scrollY);
+        }
+        resolve(container);
     });
 }
 
@@ -598,6 +589,7 @@ function NodeParser(element, renderer, support, imageLoader, options) {
     this.options = options;
     this.range = null;
     this.support = support;
+    this.renderQueue = [];
     this.stack = new StackingContext(true, 1, element.ownerDocument, null);
     var parent = new NodeContainer(element, null);
     parent.visibile = parent.isElementVisible();
@@ -615,10 +607,35 @@ function NodeParser(element, renderer, support, imageLoader, options) {
     this.ready = this.images.ready.then(bind(function() {
         log("Images loaded, starting parsing");
         this.parse(this.stack);
-        log("Finished rendering");
+        log("Render queue created with " + this.renderQueue.length + " items");
+        return new Promise(bind(function(resolve) {
+            if (!options.async) {
+                this.renderQueue.forEach(this.paint, this);
+                resolve();
+            } else if (typeof(options.async) === "function") {
+                options.async.call(this, this.renderQueue, resolve);
+            } else {
+                this.renderIndex = 0;
+                this.asyncRenderer(this.renderQueue, resolve);
+            }
+        }, this));
     }, this));
 }
 
+NodeParser.prototype.asyncRenderer = function(queue, resolve, asyncTimer) {
+    asyncTimer = asyncTimer || Date.now();
+    this.paint(queue[this.renderIndex++]);
+    if (queue.length === this.renderIndex) {
+        resolve();
+    } else if (asyncTimer + 20 > Date.now()) {
+        this.asyncRenderer(queue, resolve, asyncTimer);
+    } else {
+        setTimeout(bind(function() {
+            this.asyncRenderer(queue, resolve);
+        }, this), 0);
+    }
+};
+
 NodeParser.prototype.createPseudoHideStyles = function(document) {
     var hidePseudoElements = document.createElement('style');
     hidePseudoElements.innerHTML = '.' + this.pseudoHideClass + ':before { content: "" !important; display: none !important; }' +
@@ -695,7 +712,7 @@ NodeParser.prototype.getChildren = function(parentContainer) {
 NodeParser.prototype.newStackingContext = function(container, hasOwnStacking) {
     var stack = new StackingContext(hasOwnStacking, container.cssFloat('opacity'), container.node, container.parent);
     stack.visible = container.visible;
-    var parentStack = stack.getParentStack(this);
+    var parentStack = hasOwnStacking ? stack.getParentStack(this) : stack.parent.stack;
     parentStack.contexts.push(stack);
     container.stack = stack;
 };
@@ -704,7 +721,7 @@ NodeParser.prototype.createStackingContexts = function() {
     this.nodes.forEach(function(container) {
         if (isElement(container) && (this.isRootElement(container) || hasOpacity(container) || isPositionedForStacking(container) || this.isBodyWithTransparentRoot(container))) {
             this.newStackingContext(container, true);
-        } else if (isElement(container) && (isPositioned(container))) {
+        } else if (isElement(container) && ((isPositioned(container) && zIndex0(container)) || isInlineBlock(container) || isFloating(container))) {
             this.newStackingContext(container, false);
         } else {
             container.assignStack(container.parent.stack);
@@ -796,16 +813,9 @@ NodeParser.prototype.parse = function(stack) {
     var stackLevel0 = stack.contexts.concat(descendantNonFloats.filter(isPositioned)).filter(zIndex0); // 6. the child stacking contexts with stack level 0 and the positioned descendants with stack level 0.
     var text = stack.children.filter(isTextNode).filter(hasText);
     var positiveZindex = stack.contexts.filter(positiveZIndex); // 7. the child stacking contexts with positive stack levels (least positive first).
-    var rendered = [];
     negativeZindex.concat(nonInlineNonPositionedDescendants).concat(nonPositionedFloats)
         .concat(inFlow).concat(stackLevel0).concat(text).concat(positiveZindex).forEach(function(container) {
-            this.paint(container);
-            if (rendered.indexOf(container.node) !== -1) {
-                log(container, container.node);
-                throw new Error("rendering twice");
-            }
-            rendered.push(container.node);
-
+            this.renderQueue.push(container);
             if (isStackingContext(container)) {
                 this.parse(container);
             }
@@ -832,7 +842,7 @@ NodeParser.prototype.paintNode = function(container) {
     var bounds = this.parseBounds(container);
     var borderData = this.parseBorders(container);
     this.renderer.clip(borderData.clip, function() {
-        this.renderer.renderBackground(container, bounds);
+        this.renderer.renderBackground(container, bounds, borderData.borders.map(getWidth));
     }, this);
     this.renderer.renderBorders(borderData.borders);
 
@@ -1169,6 +1179,10 @@ function isFloating(container) {
     return container.css("float") !== "none";
 }
 
+function isInlineBlock(container) {
+    return ["inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
+}
+
 function not(callback) {
     var context = this;
     return function() {
@@ -1202,6 +1216,10 @@ function asInt(value) {
     return parseInt(value, 10);
 }
 
+function getWidth(border) {
+    return border.width;
+}
+
 function nonIgnoredElement(nodeContainer) {
     return (nodeContainer.node.nodeType !== Node.ELEMENT_NODE || ["SCRIPT", "HEAD", "TITLE", "OBJECT", "BR"].indexOf(nodeContainer.node.nodeName) === -1);
 }
@@ -1264,10 +1282,10 @@ Renderer.prototype.renderImage = function(container, bounds, borderData, image)
     );
 };
 
-Renderer.prototype.renderBackground = function(container, bounds) {
+Renderer.prototype.renderBackground = function(container, bounds, borderData) {
     if (bounds.height > 0 && bounds.width > 0) {
         this.renderBackgroundColor(container, bounds);
-        this.renderBackgroundImage(container, bounds);
+        this.renderBackgroundImage(container, bounds, borderData);
     }
 };
 
@@ -1288,14 +1306,14 @@ Renderer.prototype.renderBorder = function(data) {
     }
 };
 
-Renderer.prototype.renderBackgroundImage = function(container, bounds) {
+Renderer.prototype.renderBackgroundImage = function(container, bounds, borderData) {
     var backgroundImages = container.parseBackgroundImages();
     backgroundImages.reverse().forEach(function(backgroundImage, index, arr) {
         switch(backgroundImage.method) {
             case "url":
                 var image = this.images.get(backgroundImage.args[0]);
                 if (image) {
-                    this.renderBackgroundRepeating(container, bounds, image, arr.length - (index+1));
+                    this.renderBackgroundRepeating(container, bounds, image, arr.length - (index+1), borderData);
                 } else {
                     log("Error loading background-image", backgroundImage.args[0]);
                 }
@@ -1304,7 +1322,7 @@ Renderer.prototype.renderBackgroundImage = function(container, bounds) {
             case "gradient":
                 var gradientImage = this.images.get(backgroundImage.value);
                 if (gradientImage) {
-                    this.renderBackgroundGradient(gradientImage, bounds);
+                    this.renderBackgroundGradient(gradientImage, bounds, borderData);
                 } else {
                     log("Error loading background-image", backgroundImage.args[0]);
                 }
@@ -1317,25 +1335,24 @@ Renderer.prototype.renderBackgroundImage = function(container, bounds) {
     }, this);
 };
 
-Renderer.prototype.renderBackgroundRepeating = function(container, bounds, imageContainer, index) {
+Renderer.prototype.renderBackgroundRepeating = function(container, bounds, imageContainer, index, borderData) {
     var size = container.parseBackgroundSize(bounds, imageContainer.image, index);
     var position = container.parseBackgroundPosition(bounds, imageContainer.image, index, size);
     var repeat = container.parseBackgroundRepeat(index);
-//    image = resizeImage(image, backgroundSize);
     switch (repeat) {
         case "repeat-x":
         case "repeat no-repeat":
-            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left, bounds.top + position.top, 99999, imageContainer.image.height);
+            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + borderData[3], bounds.top + position.top + borderData[0], 99999, imageContainer.image.height, borderData);
             break;
         case "repeat-y":
         case "no-repeat repeat":
-            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left, bounds.top, imageContainer.image.width, 99999);
+            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + borderData[0], imageContainer.image.width, 99999, borderData);
             break;
         case "no-repeat":
-            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left, bounds.top + position.top, imageContainer.image.width, imageContainer.image.height);
+            this.backgroundRepeatShape(imageContainer, position, size, bounds, bounds.left + position.left + borderData[3], bounds.top + position.top + borderData[0], imageContainer.image.width, imageContainer.image.height, borderData);
             break;
         default:
-            this.renderBackgroundRepeat(imageContainer, position, size, {top: bounds.top, left: bounds.left});
+            this.renderBackgroundRepeat(imageContainer, position, size, {top: bounds.top, left: bounds.left}, borderData[3], borderData[0]);
             break;
     }
 };
@@ -1422,7 +1439,7 @@ CanvasRenderer.prototype.text = function(text, left, bottom) {
     this.ctx.fillText(text, left, bottom);
 };
 
-CanvasRenderer.prototype.backgroundRepeatShape = function(imageContainer, backgroundPosition, size, bounds, left, top, width, height) {
+CanvasRenderer.prototype.backgroundRepeatShape = function(imageContainer, backgroundPosition, size, bounds, left, top, width, height, borderData) {
     var shape = [
         ["line", Math.round(left), Math.round(top)],
         ["line", Math.round(left + width), Math.round(top)],
@@ -1430,12 +1447,12 @@ CanvasRenderer.prototype.backgroundRepeatShape = function(imageContainer, backgr
         ["line", Math.round(left), Math.round(height + top)]
     ];
     this.clip(shape, function() {
-        this.renderBackgroundRepeat(imageContainer, backgroundPosition, size, bounds);
+        this.renderBackgroundRepeat(imageContainer, backgroundPosition, size, bounds, borderData[3], borderData[0]);
     }, this);
 };
 
-CanvasRenderer.prototype.renderBackgroundRepeat = function(imageContainer, backgroundPosition, size, bounds) {
-    var offsetX = Math.round(bounds.left + backgroundPosition.left), offsetY = Math.round(bounds.top + backgroundPosition.top);
+CanvasRenderer.prototype.renderBackgroundRepeat = function(imageContainer, backgroundPosition, size, bounds, borderLeft, borderTop) {
+    var offsetX = Math.round(bounds.left + backgroundPosition.left + borderLeft), offsetY = Math.round(bounds.top + backgroundPosition.top + borderTop);
     this.setFillStyle(this.ctx.createPattern(this.resizeImage(imageContainer, size), "repeat"));
     this.ctx.translate(offsetX, offsetY);
     this.ctx.fill();
diff --git a/build/html2canvas.min.js b/build/html2canvas.min.js
index 9caf93b..2ee1dc0 100644
--- a/build/html2canvas.min.js
+++ b/build/html2canvas.min.js
@@ -4,5 +4,5 @@
 
   Released under MIT License
 */
-(function(t,e,n){function r(t,e,n,r){return a(t,n,r).then(function(t){m("Document cloned");var s=t.contentWindow,a=s.document.documentElement,c=new Q,h=new d(e,c),u=w.prototype.getBounds(a),p="view"===e.type?Math.min(u.width,n):o(),l="view"===e.type?Math.min(u.height,r):i(),f=new J(p,l,h),g=new w(a,f,c,h,e);return g.ready.then(function(){return t.parentNode.removeChild(t),f.canvas})})}function o(){return Math.max(Math.max(e.body.scrollWidth,e.documentElement.scrollWidth),Math.max(e.body.offsetWidth,e.documentElement.offsetWidth),Math.max(e.body.clientWidth,e.documentElement.clientWidth))}function i(){return Math.max(Math.max(e.body.scrollHeight,e.documentElement.scrollHeight),Math.max(e.body.offsetHeight,e.documentElement.offsetHeight),Math.max(e.body.clientHeight,e.documentElement.clientHeight))}function s(){return"data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"}function a(e,n,r){var o=e.documentElement.cloneNode(!0),i=e.createElement("iframe");return i.style.visibility="hidden",i.style.position="absolute",i.width=n,i.height=r,i.scrolling="no",e.body.appendChild(i),new Promise(function(e){var n=function(){"none"!==i.contentWindow.getComputedStyle(a,null).backgroundImage?(r.body.removeChild(a),r.body.removeChild(c),e(i)):t.setTimeout(n,10)},r=i.contentWindow.document;r.open(),r.write("<!DOCTYPE html>"),r.close(),r.replaceChild(r.adoptNode(o),r.documentElement),i.contentWindow.scrollTo(t.scrollX,t.scrollY);var a=r.createElement("div");a.className="html2canvas-ready-test",r.body.appendChild(a);var c=r.createElement("style");c.innerHTML="body div.html2canvas-ready-test { background-image:url("+s()+"); }",r.body.appendChild(c),t.setTimeout(n,1e3)})}function c(t,n){var r,o,i=e.createElement("div"),a=e.createElement("img"),c=e.createElement("span"),h="Hidden Text";i.style.visibility="hidden",i.style.fontFamily=t,i.style.fontSize=n,i.style.margin=0,i.style.padding=0,e.body.appendChild(i),a.src=s(),a.width=1,a.height=1,a.style.margin=0,a.style.padding=0,a.style.verticalAlign="baseline",c.style.fontFamily=t,c.style.fontSize=n,c.style.margin=0,c.style.padding=0,c.appendChild(e.createTextNode(h)),i.appendChild(c),i.appendChild(a),r=a.offsetTop-c.offsetTop+1,i.removeChild(c),i.appendChild(e.createTextNode(h)),i.style.lineHeight="normal",a.style.verticalAlign="super",o=a.offsetTop-i.offsetTop+1,e.body.removeChild(i),this.baseline=r,this.lineWidth=1,this.middle=o}function h(){this.data={}}function u(t){this.src=t.value,this.colorStops=[],this.type=null,this.x0=.5,this.y0=.5,this.x1=.5,this.y1=.5,this.promise=Promise.resolve(!0)}function p(t,e){this.src=t,this.image=new Image;var n=this.image;this.promise=new Promise(function(r,o){n.onload=r,n.onerror=o,e&&(n.crossOrigin="anonymous"),n.src=t,n.complete===!0&&r(n)})}function d(e,n){this.link=null,this.options=e,this.support=n,this.origin=t.location.protocol+t.location.host}function l(t){return"IMG"===t.node.nodeName}function f(t){return{args:[t.node.src],method:"url"}}function g(t){u.apply(this,arguments),this.type=this.TYPES.LINEAR,t.args[0].split(" ").forEach(function(t){switch(t){case"left":this.x0=0,this.x1=1;break;case"top":this.y0=0,this.y1=1;break;case"right":this.x0=1,this.x1=0;break;case"bottom":this.y0=1,this.y1=0}},this),t.args.slice(1).forEach(function(){},this)}function m(){t.html2canvas.logging&&t.console&&t.console.log&&t.console.log.apply(t.console,[Date.now()-t.html2canvas.start+"ms","html2canvas:"].concat([].slice.call(arguments,0)))}function y(t,e){this.node=t,this.parent=e,this.stack=null,this.bounds=null,this.visible=null,this.computedStyles=null,this.styles={},this.backgroundImages=null}function b(t){return-1!==(""+t).indexOf("%")}function v(t){var e,r,o,i,s,a,c,h=" \r\n	",u=[],p=0,d=0,l=function(){e&&('"'===r.substr(0,1)&&(r=r.substr(1,r.length-2)),r&&c.push(r),"-"===e.substr(0,1)&&(i=e.indexOf("-",1)+1)>0&&(o=e.substr(0,i),e=e.substr(i)),u.push({prefix:o,method:e.toLowerCase(),value:s,args:c,image:null})),c=[],e=o=r=s=""};return c=[],e=o=r=s="",t.split("").forEach(function(t){if(!(0===p&&h.indexOf(t)>-1)){switch(t){case'"':a?a===t&&(a=null):a=t;break;case"(":if(a)break;if(0===p)return p=1,s+=t,n;d++;break;case")":if(a)break;if(1===p){if(0===d)return p=0,s+=t,l(),n;d--}break;case",":if(a)break;if(0===p)return l(),n;if(1===p&&0===d&&!e.match(/^url$/i))return c.push(r),r="",s+=t,n}s+=t,0===p?e+=t:r+=t}}),l(),u}function w(t,e,n,r,o){m("Starting NodeParser"),this.renderer=e,this.options=o,this.range=null,this.support=n,this.stack=new K(!0,1,t.ownerDocument,null);var i=new y(t,null);i.visibile=i.isElementVisible(),this.createPseudoHideStyles(t.ownerDocument),this.nodes=U([i].concat(this.getChildren(i)).filter(function(t){return t.visible=t.isElementVisible()}).map(this.getPseudoElements,this)),this.fontMetrics=new h,m("Fetched nodes"),this.images=r.fetch(this.nodes.filter(F)),m("Creating stacking contexts"),this.createStackingContexts(),m("Sorting stacking contexts"),this.sortStackingContexts(this.stack),this.ready=this.images.ready.then(V(function(){m("Images loaded, starting parsing"),this.parse(this.stack),m("Finished rendering")},this))}function x(t){return t.replace(/(\-[a-z])/g,function(t){return t.toUpperCase().replace("-","")})}function E(t,e,n,r){var o=4*((Math.sqrt(2)-1)/3),i=n*o,s=r*o,a=t+n,c=e+r;return{topLeft:T({x:t,y:c},{x:t,y:c-s},{x:a-i,y:e},{x:a,y:e}),topRight:T({x:t,y:e},{x:t+i,y:e},{x:a,y:c-s},{x:a,y:c}),bottomRight:T({x:a,y:e},{x:a,y:e+s},{x:t+i,y:c},{x:t,y:c}),bottomLeft:T({x:a,y:c},{x:a-i,y:c},{x:t,y:e+s},{x:t,y:e})}}function k(t,e,n){var r=t.left,o=t.top,i=t.width,s=t.height,a=e[0][0],c=e[0][1],h=e[1][0],u=e[1][1],p=e[2][0],d=e[2][1],l=e[3][0],f=e[3][1],g=i-h,m=s-d,y=i-p,b=s-f;return{topLeftOuter:E(r,o,a,c).topLeft.subdivide(.5),topLeftInner:E(r+n[3].width,o+n[0].width,Math.max(0,a-n[3].width),Math.max(0,c-n[0].width)).topLeft.subdivide(.5),topRightOuter:E(r+g,o,h,u).topRight.subdivide(.5),topRightInner:E(r+Math.min(g,i+n[3].width),o+n[0].width,g>i+n[3].width?0:h-n[3].width,u-n[0].width).topRight.subdivide(.5),bottomRightOuter:E(r+y,o+m,p,d).bottomRight.subdivide(.5),bottomRightInner:E(r+Math.min(y,i+n[3].width),o+Math.min(m,s+n[0].width),Math.max(0,p-n[1].width),Math.max(0,d-n[2].width)).bottomRight.subdivide(.5),bottomLeftOuter:E(r,o+b,l,f).bottomLeft.subdivide(.5),bottomLeftInner:E(r+n[3].width,o+b,Math.max(0,l-n[3].width),Math.max(0,f-n[2].width)).bottomLeft.subdivide(.5)}}function T(t,e,n,r){var o=function(t,e,n){return{x:t.x+(e.x-t.x)*n,y:t.y+(e.y-t.y)*n}};return{start:t,startControl:e,endControl:n,end:r,subdivide:function(i){var s=o(t,e,i),a=o(e,n,i),c=o(n,r,i),h=o(s,a,i),u=o(a,c,i),p=o(h,u,i);return[T(t,s,h,p),T(p,u,c,r)]},curveTo:function(t){t.push(["bezierCurve",e.x,e.y,n.x,n.y,r.x,r.y])},curveToReversed:function(r){r.push(["bezierCurve",n.x,n.y,e.x,e.y,t.x,t.y])}}}function I(t,e,n,r,o,i,s){var a=[];return e[0]>0||e[1]>0?(a.push(["line",r[1].start.x,r[1].start.y]),r[1].curveTo(a)):a.push(["line",t.c1[0],t.c1[1]]),n[0]>0||n[1]>0?(a.push(["line",i[0].start.x,i[0].start.y]),i[0].curveTo(a),a.push(["line",s[0].end.x,s[0].end.y]),s[0].curveToReversed(a)):(a.push(["line",t.c2[0],t.c2[1]]),a.push(["line",t.c3[0],t.c3[1]])),e[0]>0||e[1]>0?(a.push(["line",o[1].end.x,o[1].end.y]),o[1].curveToReversed(a)):a.push(["line",t.c4[0],t.c4[1]]),a}function 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t.bounds=this.getBounds(t.node)},w.prototype.getBounds=function(t){if(t.getBoundingClientRect){var e=t.getBoundingClientRect(),n="BODY"===t.nodeName,r=n?t.scrollWidth:t.offsetWidth;return{top:e.top,bottom:e.bottom||e.top+e.height,right:e.left+r,left:e.left,width:r,height:n?t.scrollHeight:t.offsetHeight}}return{}},w.prototype.parseTextBounds=function(t){return function(e,n,r){if("none"!==t.parent.css("textDecoration")||0!==e.trim().length){if(this.support.rangeBounds){var o=r.slice(0,n).join("").length;return this.getRangeBounds(t.node,o,e.length)}if(t.node&&"string"==typeof t.node.data){var i=t.node.splitText(e.length),s=this.getWrapperBounds(t.node);return t.node=i,s}}else this.support.rangeBounds||(t.node=t.node.splitText(e.length));return{}}},w.prototype.getWrapperBounds=function(t){var e=t.ownerDocument.createElement("wrapper"),n=t.parentNode,r=t.cloneNode(!0);e.appendChild(t.cloneNode(!0)),n.replaceChild(e,t);var o=this.getBounds(e);return 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n,r,i=t._subscribers,o=t._detail,s=0;i.length>s;s+=3)n=i[s],r=i[s+e],p(e,n,r,o);t._subscribers=null}function f(t,e){var n,r=null;try{if(t===e)throw new TypeError("A promises callback cannot return that same promise.");if(x(e)&&(r=e.then,k(r)))return r.call(e,function(r){return n?!0:(n=!0,e!==r?g(t,r):m(t,r),void 0)},function(e){return n?!0:(n=!0,y(t,e),void 0)}),!0}catch(i){return n?!0:(y(t,i),!0)}return!1}function g(t,e){t===e?m(t,e):f(t,e)||m(t,e)}function m(t,e){t._state===B&&(t._state=O,t._detail=e,v.async(b,t))}function y(t,e){t._state===B&&(t._state=O,t._detail=e,v.async(w,t))}function b(t){l(t,t._state=A)}function w(t){l(t,t._state=L)}var v=t.config,x=(t.configure,e.objectOrFunction),k=e.isFunction,E=(e.now,n.cast),T=r.all,I=i.race,R=o.resolve,C=s.reject,S=a.asap;v.async=S;var B=void 0,O=0,A=1,L=2;h.prototype={constructor:h,_state:void 0,_detail:void 0,_subscribers:void 0,then:function(t,e){var n=this,r=new this.constructor(function(){});if(this._state){var i=arguments;v.async(function(){p(n._state,r,i[n._state-1],n._detail)})}else d(this,r,t,e);return r},"catch":function(t){return this.then(null,t)}},h.all=T,h.cast=E,h.race=I,h.resolve=R,h.reject=C,c.Promise=h}),r("promise/race",["./utils","exports"],function(t,e){"use strict";function n(t){var e=this;if(!r(t))throw new TypeError("You must pass an array to race.");return new e(function(e,n){for(var r,i=0;t.length>i;i++)r=t[i],r&&"function"==typeof r.then?r.then(e,n):e(r)})}var r=t.isArray;e.race=n}),r("promise/reject",["exports"],function(t){"use strict";function e(t){var e=this;return new e(function(e,n){n(t)})}t.reject=e}),r("promise/resolve",["exports"],function(t){"use strict";function e(t){var e=this;return new e(function(e){e(t)})}t.resolve=e}),r("promise/utils",["exports"],function(t){"use strict";function e(t){return n(t)||"object"==typeof t&&null!==t}function n(t){return"function"==typeof t}function r(t){return"[object Array]"===Object.prototype.toString.call(t)}var i=Date.now||function(){return(new Date).getTime()};t.objectOrFunction=e,t.isFunction=n,t.isArray=r,t.now=i}),i("promise/polyfill").polyfill()}(),J.prototype.renderImage=function(t,e,n,r){var i=t.cssInt("paddingLeft"),o=t.cssInt("paddingTop"),s=t.cssInt("paddingRight"),a=t.cssInt("paddingBottom"),c=n.borders;this.drawImage(r,0,0,r.width,r.height,e.left+i+c[3].width,e.top+o+c[0].width,e.width-(c[1].width+c[3].width+i+s),e.height-(c[0].width+c[2].width+o+a))},J.prototype.renderBackground=function(t,e,n){e.height>0&&e.width>0&&(this.renderBackgroundColor(t,e),this.renderBackgroundImage(t,e,n))},J.prototype.renderBackgroundColor=function(t,e){var n=t.css("backgroundColor");this.isTransparent(n)||this.rectangle(e.left,e.top,e.width,e.height,t.css("backgroundColor"))},J.prototype.renderBorders=function(t){t.forEach(this.renderBorder,this)},J.prototype.renderBorder=function(t){this.isTransparent(t.color)||null===t.args||this.drawShape(t.args,t.color)},J.prototype.renderBackgroundImage=function(t,e,n){var r=t.parseBackgroundImages();r.reverse().forEach(function(r,i,o){switch(r.method){case"url":var s=this.images.get(r.args[0]);s?this.renderBackgroundRepeating(t,e,s,o.length-(i+1),n):m("Error loading background-image",r.args[0]);break;case"linear-gradient":case"gradient":var a=this.images.get(r.value);a?this.renderBackgroundGradient(a,e,n):m("Error loading background-image",r.args[0]);break;case"none":break;default:m("Unknown background-image type",r.args[0])}},this)},J.prototype.renderBackgroundRepeating=function(t,e,n,r,i){var o=t.parseBackgroundSize(e,n.image,r),s=t.parseBackgroundPosition(e,n.image,r,o),a=t.parseBackgroundRepeat(r);switch(a){case"repeat-x":case"repeat no-repeat":this.backgroundRepeatShape(n,s,o,e,e.left+i[3],e.top+s.top+i[0],99999,n.image.height,i);break;case"repeat-y":case"no-repeat repeat":this.backgroundRepeatShape(n,s,o,e,e.left+s.left+i[3],e.top+i[0],n.image.width,99999,i);break;case"no-repeat":this.backgroundRepeatShape(n,s,o,e,e.left+s.left+i[3],e.top+s.top+i[0],n.image.width,n.image.height,i);break;default:this.renderBackgroundRepeat(n,s,o,{top:e.top,left:e.left},i[3],i[0])}},J.prototype.isTransparent=function(t){return!t||"transparent"===t||"rgba(0, 0, 0, 0)"===t},K.prototype=Object.create(J.prototype),K.prototype.setFillStyle=function(t){return this.ctx.fillStyle=t,this.ctx},K.prototype.rectangle=function(t,e,n,r,i){this.setFillStyle(i).fillRect(t,e,n,r)},K.prototype.drawShape=function(t,e){this.shape(t),this.setFillStyle(e).fill()},K.prototype.drawImage=function(t,e,n,r,i,o,s,a,c){this.ctx.drawImage(t,e,n,r,i,o,s,a,c)},K.prototype.clip=function(t,e,n){this.ctx.save(),this.shape(t).clip(),e.call(n),this.ctx.restore()},K.prototype.shape=function(t){return this.ctx.beginPath(),t.forEach(function(t,e){this.ctx[0===e?"moveTo":t[0]+"To"].apply(this.ctx,t.slice(1))},this),this.ctx.closePath(),this.ctx},K.prototype.font=function(t,e,n,r,i,o){this.setFillStyle(t).font=[e,n,r,i,o].join(" ")},K.prototype.fontShadow=function(t,e,n,r){this.setVariable("shadowColor",t).setVariable("shadowOffsetY",e).setVariable("shadowOffsetX",n).setVariable("shadowBlur",r)},K.prototype.clearShadow=function(){this.setVariable("shadowColor","rgba(0,0,0,0)")},K.prototype.setOpacity=function(t){this.ctx.globalAlpha=t},K.prototype.setVariable=function(t,e){return this.variables[t]!==e&&(this.variables[t]=this.ctx[t]=e),this},K.prototype.text=function(t,e,n){this.ctx.fillText(t,e,n)},K.prototype.backgroundRepeatShape=function(t,e,n,r,i,o,s,a,c){var h=[["line",Math.round(i),Math.round(o)],["line",Math.round(i+s),Math.round(o)],["line",Math.round(i+s),Math.round(a+o)],["line",Math.round(i),Math.round(a+o)]];this.clip(h,function(){this.renderBackgroundRepeat(t,e,n,r,c[3],c[0])},this)},K.prototype.renderBackgroundRepeat=function(t,e,n,r,i,o){var s=Math.round(r.left+e.left+i),a=Math.round(r.top+e.top+o);this.setFillStyle(this.ctx.createPattern(this.resizeImage(t,n),"repeat")),this.ctx.translate(s,a),this.ctx.fill(),this.ctx.translate(-s,-a)},K.prototype.renderBackgroundGradient=function(t,e){t instanceof g&&this.ctx.createLinearGradient(e.left,e.top,e.right,e.bottom)},K.prototype.resizeImage=function(t,n){var r=t.image;if(r.width===n.width&&r.height===n.height)return r;var i,o=e.createElement("canvas");return o.width=n.width,o.height=n.height,i=o.getContext("2d"),i.drawImage(r,0,0,r.width,r.height,0,0,n.width,n.height),o},Z.prototype=Object.create(y.prototype),Z.prototype.getParentStack=function(t){var e=this.parent?this.parent.stack:null;return e?e.ownStacking?e:e.getParentStack(t):t.stack
+},te.prototype.testRangeBounds=function(){var t,n,r,i,o=!1;return e.createRange&&(t=e.createRange(),t.getBoundingClientRect&&(n=e.createElement("boundtest"),n.style.height="123px",n.style.display="block",e.body.appendChild(n),t.selectNode(n),r=t.getBoundingClientRect(),i=r.height,123===i&&(o=!0),e.body.removeChild(n))),o},te.prototype.testCORS=function(){return(new Image).crossOrigin!==n},ee.prototype=Object.create(y.prototype),ee.prototype.applyTextTransform=function(){this.node.data=this.transform(this.parent.css("textTransform"))},ee.prototype.transform=function(t){var e=this.node.data;switch(t){case"lowercase":return e.toLowerCase();case"capitalize":return e.replace(/(^|\s|:|-|\(|\))([a-z])/g,ne);case"uppercase":return e.toUpperCase();default:return e}},re.prototype=Object.create(u.prototype)})(window,document);
\ No newline at end of file
diff --git a/src/core.js b/src/core.js
index 23c2f60..217ec71 100644
--- a/src/core.js
+++ b/src/core.js
@@ -4,6 +4,10 @@ window.html2canvas = function(nodeList, options) {
         window.html2canvas.logging = true;
         window.html2canvas.start = Date.now();
     }
+
+    options.async = typeof(options.async) === "undefined" ? true : options.async;
+    options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
+
     return renderDocument(document, options, window.innerWidth, window.innerHeight).then(function(canvas) {
         if (typeof(options.onrendered) === "function") {
             log("options.onrendered is deprecated, html2canvas returns a Promise containing the canvas");
@@ -14,7 +18,7 @@ window.html2canvas = function(nodeList, options) {
 };
 
 function renderDocument(document, options, windowWidth, windowHeight) {
-    return createWindowClone(document, windowWidth, windowHeight).then(function(container) {
+    return createWindowClone(document, windowWidth, windowHeight, options).then(function(container) {
         log("Document cloned");
         var clonedWindow = container.contentWindow;
         //var element = (nodeList === undefined) ? document.body : nodeList[0];
@@ -27,7 +31,10 @@ function renderDocument(document, options, windowWidth, windowHeight) {
         var renderer = new CanvasRenderer(width, height, imageLoader);
         var parser = new NodeParser(node, renderer, support, imageLoader, options);
         return parser.ready.then(function() {
-            container.parentNode.removeChild(container);
+            log("Finished rendering");
+            if (options.removeContainer) {
+                container.parentNode.removeChild(container);
+            }
             return renderer.canvas;
         });
     });
@@ -53,7 +60,7 @@ function smallImage() {
     return "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
 }
 
-function createWindowClone(ownerDocument, width, height) {
+function createWindowClone(ownerDocument, width, height, options) {
     var documentElement = ownerDocument.documentElement.cloneNode(true),
         container = ownerDocument.createElement("iframe");
 
@@ -65,18 +72,6 @@ function createWindowClone(ownerDocument, width, height) {
     ownerDocument.body.appendChild(container);
 
     return new Promise(function(resolve) {
-        var loadedTimer = function() {
-            /* Chrome doesn't detect relative background-images assigned in style sheets when fetched through getComputedStyle,
-            before a certain time has passed
-             */
-            if (container.contentWindow.getComputedStyle(div, null)['backgroundImage'] !== "none") {
-                documentClone.body.removeChild(div);
-                documentClone.body.removeChild(style);
-                resolve(container);
-            } else {
-                window.setTimeout(loadedTimer, 10);
-            }
-        };
         var documentClone = container.contentWindow.document;
         /* Chrome doesn't detect relative background-images assigned in inline <style> sheets when fetched through getComputedStyle
         if window url is about:blank, we can assign the url to current by writing onto the document
@@ -86,13 +81,9 @@ function createWindowClone(ownerDocument, width, height) {
         documentClone.close();
 
         documentClone.replaceChild(documentClone.adoptNode(documentElement), documentClone.documentElement);
-        container.contentWindow.scrollTo(window.scrollX, window.scrollY);
-        var div = documentClone.createElement("div");
-        div.className = "html2canvas-ready-test";
-        documentClone.body.appendChild(div);
-        var style = documentClone.createElement("style");
-        style.innerHTML = "body div.html2canvas-ready-test { background-image:url(" + smallImage() + "); }";
-        documentClone.body.appendChild(style);
-        window.setTimeout(loadedTimer, 1000);
+        if (options.type === "view") {
+            container.contentWindow.scrollTo(window.scrollX, window.scrollY);
+        }
+        resolve(container);
     });
 }
diff --git a/src/nodeparser.js b/src/nodeparser.js
index a031ffc..43f68fa 100644
--- a/src/nodeparser.js
+++ b/src/nodeparser.js
@@ -4,6 +4,7 @@ function NodeParser(element, renderer, support, imageLoader, options) {
     this.options = options;
     this.range = null;
     this.support = support;
+    this.renderQueue = [];
     this.stack = new StackingContext(true, 1, element.ownerDocument, null);
     var parent = new NodeContainer(element, null);
     parent.visibile = parent.isElementVisible();
@@ -21,10 +22,35 @@ function NodeParser(element, renderer, support, imageLoader, options) {
     this.ready = this.images.ready.then(bind(function() {
         log("Images loaded, starting parsing");
         this.parse(this.stack);
-        log("Finished rendering");
+        log("Render queue created with " + this.renderQueue.length + " items");
+        return new Promise(bind(function(resolve) {
+            if (!options.async) {
+                this.renderQueue.forEach(this.paint, this);
+                resolve();
+            } else if (typeof(options.async) === "function") {
+                options.async.call(this, this.renderQueue, resolve);
+            } else {
+                this.renderIndex = 0;
+                this.asyncRenderer(this.renderQueue, resolve);
+            }
+        }, this));
     }, this));
 }
 
+NodeParser.prototype.asyncRenderer = function(queue, resolve, asyncTimer) {
+    asyncTimer = asyncTimer || Date.now();
+    this.paint(queue[this.renderIndex++]);
+    if (queue.length === this.renderIndex) {
+        resolve();
+    } else if (asyncTimer + 20 > Date.now()) {
+        this.asyncRenderer(queue, resolve, asyncTimer);
+    } else {
+        setTimeout(bind(function() {
+            this.asyncRenderer(queue, resolve);
+        }, this), 0);
+    }
+};
+
 NodeParser.prototype.createPseudoHideStyles = function(document) {
     var hidePseudoElements = document.createElement('style');
     hidePseudoElements.innerHTML = '.' + this.pseudoHideClass + ':before { content: "" !important; display: none !important; }' +
@@ -101,7 +127,7 @@ NodeParser.prototype.getChildren = function(parentContainer) {
 NodeParser.prototype.newStackingContext = function(container, hasOwnStacking) {
     var stack = new StackingContext(hasOwnStacking, container.cssFloat('opacity'), container.node, container.parent);
     stack.visible = container.visible;
-    var parentStack = stack.getParentStack(this);
+    var parentStack = hasOwnStacking ? stack.getParentStack(this) : stack.parent.stack;
     parentStack.contexts.push(stack);
     container.stack = stack;
 };
@@ -110,7 +136,7 @@ NodeParser.prototype.createStackingContexts = function() {
     this.nodes.forEach(function(container) {
         if (isElement(container) && (this.isRootElement(container) || hasOpacity(container) || isPositionedForStacking(container) || this.isBodyWithTransparentRoot(container))) {
             this.newStackingContext(container, true);
-        } else if (isElement(container) && (isPositioned(container))) {
+        } else if (isElement(container) && ((isPositioned(container) && zIndex0(container)) || isInlineBlock(container) || isFloating(container))) {
             this.newStackingContext(container, false);
         } else {
             container.assignStack(container.parent.stack);
@@ -202,16 +228,9 @@ NodeParser.prototype.parse = function(stack) {
     var stackLevel0 = stack.contexts.concat(descendantNonFloats.filter(isPositioned)).filter(zIndex0); // 6. the child stacking contexts with stack level 0 and the positioned descendants with stack level 0.
     var text = stack.children.filter(isTextNode).filter(hasText);
     var positiveZindex = stack.contexts.filter(positiveZIndex); // 7. the child stacking contexts with positive stack levels (least positive first).
-    var rendered = [];
     negativeZindex.concat(nonInlineNonPositionedDescendants).concat(nonPositionedFloats)
         .concat(inFlow).concat(stackLevel0).concat(text).concat(positiveZindex).forEach(function(container) {
-            this.paint(container);
-            if (rendered.indexOf(container.node) !== -1) {
-                log(container, container.node);
-                throw new Error("rendering twice");
-            }
-            rendered.push(container.node);
-
+            this.renderQueue.push(container);
             if (isStackingContext(container)) {
                 this.parse(container);
             }
@@ -238,7 +257,7 @@ NodeParser.prototype.paintNode = function(container) {
     var bounds = this.parseBounds(container);
     var borderData = this.parseBorders(container);
     this.renderer.clip(borderData.clip, function() {
-        this.renderer.renderBackground(container, bounds);
+        this.renderer.renderBackground(container, bounds, borderData.borders.map(getWidth));
     }, this);
     this.renderer.renderBorders(borderData.borders);
 
@@ -575,6 +594,10 @@ function isFloating(container) {
     return container.css("float") !== "none";
 }
 
+function isInlineBlock(container) {
+    return ["inline-block", "inline-table"].indexOf(container.css("display")) !== -1;
+}
+
 function not(callback) {
     var context = this;
     return function() {
@@ -608,6 +631,10 @@ function asInt(value) {
     return parseInt(value, 10);
 }
 
+function getWidth(border) {
+    return border.width;
+}
+
 function nonIgnoredElement(nodeContainer) {
     return (nodeContainer.node.nodeType !== Node.ELEMENT_NODE || ["SCRIPT", "HEAD", "TITLE", "OBJECT", "BR"].indexOf(nodeContainer.node.nodeName) === -1);
 }
diff --git a/tests/assets/jquery.plugin.html2canvas.js b/tests/assets/jquery.plugin.html2canvas.js
index 851062d..e8f79be 100644
--- a/tests/assets/jquery.plugin.html2canvas.js
+++ b/tests/assets/jquery.plugin.html2canvas.js
@@ -12,7 +12,12 @@
             timer = date.getTime();
         options = options || {};
 
-        html2canvas(this, options).then(function(canvas) {
+        var promise = html2canvas(this, options);
+        promise.catch(function(err) {
+           console.log("html2canvas threw an error", err);
+        });
+
+        promise.then(function(canvas) {
             var $canvas = $(canvas),
                 finishTime = new Date();