Problems:
* `title` attribute of links are not removed on `focus`, causing qunit test failure (locally only, for some reason)
** Repro steps:
1. Run qunit tests locally, observe failure of 3rd assertion in `ext.popups.core: removeTooltips` test. Alternatively, try manually tabbing focus onto a link with popups enabled.
* Sometimes on `mouseover` the `title` attribute is not removed at all.
** Repro steps:
1. Go to https://en.wikipedia.beta.wmflabs.org/wiki/25thjuneChrome (fresh page reload)
2. Inspect first link ("List of books about Wikipedia"), observe `title` attribute is present.
3. Hover over link, observe `title` attribute is not removed. Repeat steps 1-3 if it is removed. Cannot find consistent manner in which to reproduce, but it happens frequently.
* The `title` attribute is sometimes not restored on `mouseout`, breaking it for the rest of the page session.
** Repro steps:
1. Go to https://en.wikipedia.beta.wmflabs.org/wiki/25thjuneChrome (fresh page reload)
2. Inspect first link ("List of books about Wikipedia"), observe `title` attribute is present.
3. Hover over link, observe `title` attribute is properly removed. (Repeat step if 2nd problem above is encountered.)
4. Mouse off of link, observe `title` attribute is properly restored. (Usually is on first try, anyways.)
5. Repeat steps 3-4, observe `title` attribute is not restored. Cannot find consistent manner in which to reproduce, so repeat steps 3-4 until it happens.
Note that //none// of these problems appear to be race conditions. They all occur even if you wait for scripts to fully load and animations to complete.
---
**Story**
As a reader, I don't want to see both the title of the article, as it is distracting
**Acceptance Criteria**
Title tag doesn't appear when hovercards are on
Title tag appears when hovercards are off
**Description**
MediaWiki sets the `title` tag on all internal links, and many/most browsers show it as a small popup when one hovers over the link. This often interfers with hovercards (not always - I'm also seeing lots of hovercards without accompanying title popups).
==Example screenshots==
from https://hu.wikipedia.org/wiki/James_Bond , browsing anonymously on September 10:
{F4459228, width=80%}
from https://de.wikipedia.org/wiki/Wikipedia:Hauptseite , browsing while logged in with Hovercards beta feature enabled on August 17:
{F4459231, width=60%}
from https://de.wikipedia.org/wiki/Cannes , browsing while logged in with Hovercards beta feature enabled on August 17:
{F4459234, width=60%}
All on Chrome under Linux.