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Use URL.createObjectURL during Plotly.downloadImage - #4008
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... to workaround Chrome URL length limit (#3771) and probably (not tested) have a perf boost. N.B. createObjectURL expects Blob object which itself expect data string w/o data:image prefix, so use imageDataOnly in the Plotly.toImage call
- so that when we can fallback to window.webkitURL if window.URL isn't defined
- which speeds up things for loooong SVG strings - must (still) use encodeSVG in Safari and IE9
antoinerg
commented
Jul 2, 2019
Contributor
Looks good to me! Thanks for the improvement 💃 |
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... to not hit the 2MB URL-length limit in Chrome - which resolves#3771 - and improve
downloadImageperformance.before: https://codepen.io/anon/pen/WWZBOB
after: https://codepen.io/etpinard/pen/MMGGVW (click to "Download plot as a png" modebar button)
All-format playground: https://codepen.io/etpinard/pen/QXraeW
@plotly/plotly_js