RESOLVED CONFIGURATION CHANGED231474
Safari 15 canvas drawImage API Error 
https://bugs.webkit.org/show_bug.cgi?id=231474
Summary Safari 15 canvas drawImage API Error
kaelyn
Reported 2021-10-09 01:28:18 PDT
Created attachment 440703 [details] render error on safari 15 Version: 15.0(17612.1.15.1.14) Description: 1. Getting the canvas context. 2. Create an image dom element with long base64 string as its source. 3. Using drawImage API to render that image dom. 4. The canvas crash, it cannot render anything after using drawImage API!!! Test code: https://codepen.io/applekaelyn/pen/mdWgMGq ```html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> </head> <body> <img id="testImg" width="100" height="100" src="data:image/svg+xml;base64,CjxzdmcgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiPgogIDxlbGxpcHNlIGN4PSIyNDAiIGN5PSIxMDAiIHJ4PSIyMjAiIHJ5PSIzMCIgc3R5bGU9ImZpbGw6cHVycGxlIiAvPgogIDxlbGxpcHNlIGN4PSIyMjAiIGN5PSI3MCIgcng9IjE5MCIgcnk9IjIwIiBzdHlsZT0iZmlsbDpsaW1lIiAvPgogIDxlbGxpcHNlIGN4PSIyMTAiIGN5PSI0NSIgcng9IjE3MCIgcnk9IjE1IiBzdHlsZT0iZmlsbDp5ZWxsb3ciIC8+Cjwvc3ZnPg=="></img> <canvas height="200" width="200" id="test"></canvas> </body> </html> ``` ```js var ctx = document.getElementById("test").getContext("2d"); console.log("😄", ctx); ctx.font = "12px serif"; ctx.fillText("Hello world", 50, 10); var image = document.getElementById('testImg'); ctx.drawImage(image, 20, 20, 100, 100) ctx.fillText("Hello world again!", 50, 200); ```
Attachments
render error on safari 15 (4.57 KB, image/png)
2021-10-09 01:28 PDT, kaelyn 		no flags
Details
Correct Rendering result on chrome (10.59 KB, image/png)
2021-10-09 01:28 PDT, kaelyn 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
kaelyn
Comment 1 2021-10-09 01:28:59 PDT
Created attachment 440704 [details] Correct Rendering result on chrome
Alexey Proskuryakov
Comment 2 2021-10-11 09:24:00 PDT
I cannot reproduce this with Safari 15.1 beta. Could you please verify with the beta, and reopen if this still happens?
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