Exporting blobs with Chrome on iOS not working

[hristoiankov]

Exporting files (pdf export, png export, database export) with Chrome on iOS does not work. After the progress bar hits saving file, nothing happens.

FileSaver.js open ticket:
eligrey/FileSaver.js#735

From their documentation on iOS:
"saveAs must be run within a user interaction event such as onTouchDown or onClick; setTimeout will prevent saveAs from triggering. Due to restrictions in iOS saveAs opens in a new window instead of downloading, if you want this fixed please tell Apple how this WebKit bug is affecting you."

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A workaround has been pushed in that uses FileReader to at least get some download coming out, but it seems there is also a file size limitation. Any file over ~1.4MB will not download. This limitation could be caused by FileReader.readAsDataURL().

[hristoiankov]

JSFiddle for testing:
https://jsfiddle.net/oen0ja4m/2/

[hristoiankov]

The ticket to follow for this issue is on the Chromium project:
https://bugs.chromium.org/p/chromium/issues/detail?id=1252380

There's nothing that can be done on CIDEr's end to mitigate this issue.