Captcha illegible in Firefox on Android?
(1) By Martijn Coppoolse (vor0nwe) on 2026-05-08 13:22:27 [link] [source]
Someone reported that in Firefox on Android, the captcha is very hard to impossible to read. Is this a known problem, or did something change recently?
I wondered if it was the skin, or some problem on my server, but I'm seeing the same problem on the pikchr.org site:
(2) By Richard Hipp (drh) on 2026-05-08 13:32:40 in reply to 1 [link] [source]
I noticed the other day that for space character in the constant-width font on Android/Firefox is narrower than all other characters. (In other words, the constant-width font is not really constant-width.) That messes up rendering of tables drawn using unicode box characters, for example.
I don't know if this is a problem in Android or in Firefox.
(3.1) By Stephan Beal (stephan) on 2026-05-08 15:44:53 edited from 3.0 in reply to 2 [source]
I don't know if this is a problem in Android or in Firefox.
Seems to be the combination of the two. It works fine in desktop Firefox.
Edit: with Chrome on Android the problem is there but only slightly. The captcha is still legible, just looks slightly skewed.
(4) By Richard Hipp (drh) on 2026-05-08 16:40:43 in reply to 1 [link] [source]
I was able to reproduce this on an Android tablet. Should be fixed now with check-in 2026-05-08T16:35:03.083Z.
(5) By Martijn Coppoolse (vor0nwe) on 2026-05-10 18:07:21 in reply to 4 [link] [source]
Fix confirmed. Thank you very much for the speedy response!