javascript-canvas-to-blob

JavaScript Canvas to Blob is a function to convert canvas elements into Blob objects.

https://cdnjs.webstatic.cn/ajax/libs/javascript-canvas-to-blob/3.29.0/js/canvas-to-blob.js
https://cdnjs.webstatic.cn/ajax/libs/javascript-canvas-to-blob/3.29.0/js/canvas-to-blob.min.js