feat: drop support for IE9

.github/workflows/ci.yml

@@ -117,9 +117,6 @@ jobs:
             name: iOS Simulator Safari 15
             targetBrowser: Safari_IOS_15
             xcode: /Applications/Xcode_13.0.app
-          - os: windows-latest
-            name: Windows Internet Explorer 9 (Emulated)
-            targetBrowser: IE_9
           - os: windows-latest
             name: Windows Internet Explorer 10 (Emulated)
             targetBrowser: IE_10

README.md

@@ -3,7 +3,7 @@ html2canvas
 
 [Homepage](https://html2canvas.hertzen.com) | [Downloads](https://github.com/niklasvh/html2canvas/releases) | [Questions](https://github.com/niklasvh/html2canvas/discussions/categories/q-a)
 
-[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/niklasvh/html2canvas?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) 
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/niklasvh/html2canvas?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 ![CI](https://github.com/niklasvh/html2canvas/workflows/CI/badge.svg?branch=master)
 [![NPM Downloads](https://img.shields.io/npm/dm/html2canvas.svg)](https://www.npmjs.org/package/html2canvas)
 [![NPM Version](https://img.shields.io/npm/v/html2canvas.svg)](https://www.npmjs.org/package/html2canvas)
@@ -28,7 +28,8 @@ The library should work fine on the following browsers (with `Promise` polyfill)
 * Firefox 3.5+
 * Google Chrome
 * Opera 12+
-* IE9+
+* IE10+
+* Edge
 * Safari 6+
 
 As each CSS property needs to be manually built to be supported, there are a number of properties that are not yet supported.

docs/documentation.md

@@ -5,28 +5,28 @@ nextUrl: "/getting-started"
 nextTitle: "Getting Started"
 ---
 
-Before you get started with the script, there are a few things that are good to know regarding the 
+Before you get started with the script, there are a few things that are good to know regarding the
 script and some of its limitations.
 
 ## Introduction
 The script allows you to take "screenshots" of webpages or parts of it, directly on the users browser.
-The screenshot is based on the DOM and as such may not be 100% accurate to the real representation 
+The screenshot is based on the DOM and as such may not be 100% accurate to the real representation
-as it does not make an actual screenshot, but builds the screenshot based on the information 
+as it does not make an actual screenshot, but builds the screenshot based on the information
 available on the page.
 
 ## How it works
 The script traverses through the DOM of the page it is loaded on. It gathers information on all the elements
 there, which it then uses to build a representation of the page. In other words, it does not actually take a
 screenshot of the page, but builds a representation of it based on the properties it reads from the DOM.
-            
+
-            
+
-As a result, it is only able to render correctly properties that it understands, meaning there are many 
+As a result, it is only able to render correctly properties that it understands, meaning there are many
-CSS properties which do not work. For a full list of supported CSS properties, check out the 
+CSS properties which do not work. For a full list of supported CSS properties, check out the
 [supported features](/features/) page.
 
 ## Limitations
-All the images that the script uses need to reside under the [same origin](http://en.wikipedia.org/wiki/Same_origin_policy) 
+All the images that the script uses need to reside under the [same origin](http://en.wikipedia.org/wiki/Same_origin_policy)
-for it to be able to read them without the assistance of a [proxy](/proxy/). Similarly, if you have other `canvas` 
+for it to be able to read them without the assistance of a [proxy](/proxy/). Similarly, if you have other `canvas`
 elements on the page, which have been tainted with cross-origin content, they will become dirty and no longer readable by html2canvas.
 
 The script doesn't render plugin content such as Flash or Java applets.
@@ -37,6 +37,6 @@ The library should work fine on the following browsers (with `Promise` polyfill)
  - Firefox 3.5+
  - Google Chrome
  - Opera 12+
- - IE9+
+ - IE10+
  - Edge
  - Safari 6+

karma.conf.js

@@ -48,12 +48,6 @@ module.exports = function(config) {
             platform: 'iOS',
             sdk: '15.0'
         },
-        SauceLabs_IE9: {
-            base: 'SauceLabs',
-            browserName: 'internet explorer',
-            version: '9.0',
-            platform: 'Windows 7'
-        },
         SauceLabs_IE10: {
             base: 'SauceLabs',
             browserName: 'internet explorer',
@@ -93,11 +87,6 @@ module.exports = function(config) {
             version: '9.3',
             device: 'iPhone 6 Plus Simulator'
         },
-        IE_9: {
-            base: 'IE',
-            'x-ua-compatible': 'IE=EmulateIE9',
-            flags: ['-extoff']
-        },
         IE_10: {
             base: 'IE',
             'x-ua-compatible': 'IE=EmulateIE10',

src/core/cache-storage.ts

@@ -12,7 +12,6 @@ export class CacheStorage {
         }
 
         link.href = url;
-        link.href = link.href; // IE9, LOL! - http://jsfiddle.net/niklasvh/2e48b/
         return link.protocol + link.hostname + link.port;
     }
 

tests/testrunner.ts

@@ -8,15 +8,14 @@ import {ScreenshotRequest} from './types';
 // @ts-ignore
 window.Promise = Promise;
 const testRunnerUrl = location.href;
-const hasHistoryApi = typeof window.history !== 'undefined' && typeof window.history.replaceState !== 'undefined';
 
 const uploadResults = (canvas: HTMLCanvasElement, url: string) => {
-    return new Promise((resolve: () => void, reject: (error: string) => void) => {
+    // @ts-ignore
-        // @ts-ignore
+    return new Promise((resolve: () => void, reject: (error: any) => void) => {
-        const xhr = 'withCredentials' in new XMLHttpRequest() ? new XMLHttpRequest() : new XDomainRequest();
+        const xhr = new XMLHttpRequest();
 
         xhr.onload = () => {
-            if (typeof xhr.status !== 'number' || xhr.status === 200) {
+            if (xhr.status === 200) {
                 resolve();
             } else {
                 reject(`Failed to send screenshot with status ${xhr.status}`);
@@ -62,21 +61,17 @@ testList
                 testContainer.onload = () => done();
 
                 testContainer.src = url + '?selenium&run=false&reftest&' + Math.random();
-                if (hasHistoryApi) {
+                // Chrome does not resolve relative background urls correctly inside of a nested iframe
-                    // Chrome does not resolve relative background urls correctly inside of a nested iframe
+                try {
-                    try {
+                    history.replaceState(null, '', url);
-                        history.replaceState(null, '', url);
+                } catch (e) {}
-                    } catch (e) {}
-                }
 
                 document.body.appendChild(testContainer);
             });
             after(() => {
-                if (hasHistoryApi) {
+                try {
-                    try {
+                    history.replaceState(null, '', testRunnerUrl);
-                        history.replaceState(null, '', testRunnerUrl);
+                } catch (e) {}
-                    } catch (e) {}
-                }
                 document.body.removeChild(testContainer);
             });