Anybody knows why this input accepts .php file extensions?
( At least in the latest version of chrome )
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.
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).