Created attachment 111733 [details]
Screenshot demonstrating the bug
The plaintext message viewer makes URLs it recognises clickable. However, this only works for short URLs, up to 255 characters. At 256 characters and above, URLs are no longer clickable.
This is a problem, since such long URLs are fairly common. For example, when Kickstarter and Patreon send project updates through e-mail, the links include long random tokens, almost always pushing them over the 255-character limit.
Attached is a screenshot demonstrating this effect, with a text/plain e-mail with two URLs, one of 255 characters and one of 256.
Git commit 18fe183efd5ab4a68947fd062cd0d8a0e5ca2071 by Laurent Montel.
Committed on 03/04/2018 at 11:48.
Pushed by mlaurent into branch 'Applications/18.04'.
Fix Bug 392520 - Long URLs are not clickable in plaintext message viewer
M +1 -1 messageviewer/src/header/headerstyle_util.cpp
M +2 -2 messageviewer/src/messagepartthemes/default/plugins/quotehtml.cpp