javascript - HTML5 Canvas toDataUrl - Upload gif workaround -


i'm wondering if it's possible preview .gif image within canvas element , uploaded 'image/gif' file type. found so question, incorrectly mentions .gif in title no references on how deal canvas , gifs within of responses/comments.

according docs, 'image/gif' not accepted type todataurl. there workaround / lib allow me place gif within preview canvas , upload canvas file gif?

filereader.readasdataurl()

from mozilla.org

function previewfile() {    var preview = document.queryselector('img');    var file = document.queryselector('input[type=file]').files[0];    var reader = new filereader();      reader.onloadend = function() {      preview.src = reader.result;    }      if (file) {      reader.readasdataurl(file);    } else {      preview.src = "";    }  }
<input type="file" onchange="previewfile()">  <br>  <img src="" height="200" alt="image preview...">


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