Last modified: 2013-08-25 11:04:24 UTC
An anonymous editor at en.wp reports: "I was attempting to correct a minor error at [[Class 455]]. Although I was only attempting to change one word, the editor changed, :...in common with the Classes 313 / 314 / 315 / 507 / 508 units." into :<nowiki>...in common with the Classes <a href=tel:313 / 314 / 315">313 / 314 / 315</a> / 507 / 508 units.</nowiki> and then complains of a formatting error and refuses to allow the change to be saved. The editor seems to be interpreting the list of class numbers as a telephone number." I have been unable to reproduce this using Firefox 22 on Linux, including editing the article in question.
This may be a VE issue if you are seeing a-href showing up in wikitext on serialization.
This is almost certainly due to a browser plugin that thinks it's being "helpful". Certainly, nothing in VisualEditor or Parsoid understand href=tel: links, so it's not going to come from us. I also can't reproduce locally in Firefox, Safari or Chrome. Marking as INVALID (but we are seeing a small number of these consistent due to people having broken plugins; we're investigating whether there's a way to stop them).
Just for reference, the original reporter subsequently noted that they use Ipad IOS6 with Safari
This might be default behavior in the Safari iOS contenteditable. In that case we probably need to file a bugreport upstream.