touch issues spotted on the web console; touch scrolling feeling "rough"

[David Barth]

While debugging issues with webapps, I noticed the following errors in the web inspector console:

62
TypeError: 'null' is not an object (evaluating 'touch2.clientX')
54
TypeError: 'null' is not an object (evaluating 'distance(event.changedTouches[0], currentTouch)')

Where 62 and 54 represent the number of occurences of the error. Each touch and scroll event triggers an increment in the counters.

[David Barth (dbarth)]

On wikipedia, almost the same symptoms occur, except only the first kind of error is logged on the console:

23
TypeError: 'null' is not an object (evaluating 'touch2.clientX')

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:webbrowser-app at revision 402, scheduled for release in webbrowser-app, milestone ubuntu-13.04-month-5

[Launchpad Janitor (janitor)]

This bug was fixed in the package webbrowser-app - 0.22+14.04.20131107-0ubuntu1

---------------
webbrowser-app (0.22+14.04.20131107-0ubuntu1) trusty; urgency=low

  [ Olivier Tilloy ]
  * Fix a test failing with autopilot 1.4. This is likely a bug in
    autopilot (or its Qt layer) itself, needs more investigation. In the
    meantime, this fix should be safe.
  * Do not handle a touchmove event if there is no current touch. (LP:
    #1237513)

  [ Ubuntu daily release ]
  * Automatic snapshot from revision 402
 -- Ubuntu daily release <email address hidden> Thu, 07 Nov 2013 14:37:10 +0000