html - Accept attribute for input[type=file] allows other extensions

Question

Anybody knows why this input accepts .php file extensions?

( At least in the latest version of chrome )

<input type="file" accept=".doc,.pdf,.txt,.rtl">

Answer 1

This is apparently a Mac Os only bug.
I wasn't able to reproduce it from my win10 VM, but it is still there in v.55.0.2861.0 canary.

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The problem seems to come from the .txt.
It's like it will accept any text/* files, when this extension is set.

You can star this chromium issue which treats of the same underlying issue (with a different extension).

<input type="file" accept=".txt">