GitHub - wcroachie/webp-ios: html canvas export as webp - polyfill for iOS safari (and any other browsers that do not support webp export)

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webp-ios.js		webp-ios.js

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this is a polyfill to add support for browsers that do not support the following:

HTMLCanvasElement.toDataURL("image/webp",quality)
HTMLCanvasElement.toBlob(blob=>{},"image/webp",quality)

It uses webassembly and the module pulled from the "examples" folder in the chromium source code.

it hooks the HTMLCanvasElement prototype so it isn't exactly a great solution but it works until webkit decides to support webp encoding for canvases.
enjoy i guess