Some anonymous users reported this issue on it.wiki, which makes it impossible to add a source with their edits. The same thing happens on en.wiki and test2.wiki.
Steps to Reproduce:
- Be sure you are logged-out;
- Switch to mobile view;
- Edit any page providing a website URL and try to save it.
Actual Result: The generic [[https://www.mediawiki.org/wiki/MediaWiki:Mobile-frontend-editor-error|Error, edit not saved.]] message is shown and the changes are not saved.
Expected result: A CAPTCHA should be prompted to the user to prevent spam, but after solving it the edit should saved, like it correctly happens in desktop mode.