Stop users uploading attaching empty files to templates#5963
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Motivation for doing this now is it stops us detecting the mimetype of the file. However there’s probably no need for people to be sending empty files – in fact it’s most likey testing or a mistake. And since in the UI we can warn people at the time of uploading, not sending, it seems like it doesn’t hurt to add some validation.
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rparke
approved these changes
Jun 15, 2026
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Why do this now? Because we cannot detect the mimetype of an empty file.
However there’s probably no need for people to be sending empty files – in fact it’s most likely testing or a mistake. And since in the UI we can warn people at the time of uploading, not sending, it seems like it doesn’t hurt to add some validation.