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Internet explorer crashes with animations

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We have a lot of animations (1600+) that are converted from SWF files into javascript files because we need to run them on iPads and android devices; the original software was flash based. Since the content must run in Internet Explorer 11 (Chrome is not an option) or a tablet device, this necessitated conversion.

So, here is the problem, say the converted animation is 180K in size. It consists of 1 page of text with highlighting traversing the text. e.g. frame 1 highlights the first sentence yellow, frame 2 highlights the second sentence and so on. The text is vectorized in the conversion process. Here in lies the problem. The vectorization creates shapes. It will consider all the converted text to be 1 shape. The string for the shape winds up being 150K in size. When you try to load the animation, IE 11 crashes out with storage errors from javascript ("Not enough storage is available to complete this operation").

We were able to create a workaround by splitting the 150K string into smaller chunks. However, why is it it runs OK on tablets and, just to verify, Desktop chrome but not on IE 11. Before you ask, I have a contractual obligation to run it in IE 11 on PC; any other browser on the desktop is not an option. Is it worthwhile to submit a bug report for this?

Thanks


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