Do any of you have data on what the threshold might be for identifying file sizes that might crash your browser? Or do you know what best practices are on that point? It would be good if we could agree on a limit that is at least partly informed by data.
I imagine its less about file size, and more about number of pixels (or uncompressed file size)
https://commons.wikimedia.org/wiki/Template:Largeimage says 50 MP, but that seems small to me. Do we know what causes browser crashes for large images - is it simply running out of RAM causing the browser to swap all over the place and be slow or are there other issues at play. (Based on back of the napkin calculations, 50 MP = very roughly 280 MB ram. )
If there is no reliable data or best practices, we might have to determine this threshold together arbitrarily, based on common sense. In that case, what do you think would be a reasonable threshold when we would start giving the warning? 50Mb or above? 100Mb or above?
Keep in mind its not just crashing the browser. Accidentally downloading a gigabyte (or whatever) of data without meaning to is often a bad thing. Particularly for people on metered internet.
If I was to pick numbers out of a hat, I'd start warning maybe at images > 50 MB, or > 75 MP, but that's chosen rather arbitrarily
--bawolff