Demo: Guard for canvas.toBlob() returning null.

blueimp · blueimp · commit 83070b5930b7 · 2020-05-08T01:42:33.000+09:00
diff --git a/js/demo/demo.js b/js/demo/demo.js
@@ -132,6 +132,7 @@ $(function () {
         loadImage.writeExifData(data.imageHead, data, 'Orientation', 1)
       }
       img.toBlob(function (blob) {
+        if (!blob) return
         loadImage.replaceHead(blob, data.imageHead, function (newBlob) {
           content
             .attr('href', loadImage.createObjectURL(newBlob))

Original file line number	Diff line number	Diff line change
`@@ -132,6 +132,7 @@ $(function () {`
`132`	`132`	`loadImage.writeExifData(data.imageHead, data, 'Orientation', 1)`
`133`	`133`	`}`
`134`	`134`	`img.toBlob(function (blob) {`
	`135`	`+ if (!blob) return`
`135`	`136`	`loadImage.replaceHead(blob, data.imageHead, function (newBlob) {`
`136`	`137`	`content`
`137`	`138`	`.attr('href', loadImage.createObjectURL(newBlob))`