@Frietjes: One to think about. This module makes assumptions about the order of the parameters in the POTD page; after this harmless-looking edit, the alt text parameters ended up being shown on the main page. -- John of Reading (talk) 03:34, 22 July 2020 (UTC)
{{subst:#invoke:POTD titletext|main|2020-07-20}}
(not sure exactly of the process) to create the link text in Template:POTD protected/2020-07-22 and that added |alt1=
and |alt2=
due to failure of this module to correctly parse the title information? and this error was subsequently corrected here? I was able debug the issue since {{subst:#invoke:POTD titletext|main|2020-07-20}}
is still showing the problem and I have updated the code. the new version leverages the backend substitution process to isolate the titletext, instead of using the fragile regular expression. if it fails, it will return either ? or ?? depending on where it fails in the process, but I tested it on the next 10 POTD and it is working for those, so I believe it's fixed now. Frietjes (talk) 14:53, 22 July 2020 (UTC)