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Verify username is unique before creating account #2

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Alanaktion opened this issue Nov 26, 2015 · 0 comments

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Alanaktion commented Nov 26, 2015

The username should allow most printable ASCII characters, and probably some Unicode characters as well, but this can cause serious issues, see https://labs.spotify.com/2013/06/18/creative-usernames/

Alanaktion added security bug labels

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