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FilmKnurd/iframeToImage.js

Created October 29, 2015 16:25
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  1. Andrew Elster created this gist Oct 29, 2015.
    12 changes: 12 additions & 0 deletions iframeToImage.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,12 @@
    var canvas = document.getElementById('canvas-id');
    var context = canvas.getContext('2d');
    var idoc = document.getElementById('iframe-id').contentWindow.document.body;

    domvas.toImage(idoc, function() {
    context.drawImage(this, 0, 0, width, height);

    // Download
    var rawImageData = canvas.toDataURL("image/png;base64");
    rawImageData = rawImageData.replace("image/png", "image/octet-stream");
    document.location.href = rawImageData;
    }, width, height);