1192182 - Android, FF39.0: Url bar moves when an element is dragged

Status: RESOLVED DUPLICATE of bug 1044370

(Firefox for Android Graveyard :: General, defect)

Description

[stefanreppner]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/600.7.12 (KHTML, like Gecko) Version/8.0.7 Safari/600.7.12
Firefox for Android

Steps to reproduce:

Firefox for Android v39.0
* go to http://timruffles.github.io/ios-html5-drag-drop-shim/enter-leave/
* move a draggable item up and down



Actual results:

The url bar will move according to the touch gesture, but if the page is dragging an element it is quite confusing and feels broken. 

If the javascript calls preventDefault on a touch move event it should not move the location bar because obviously the page wants to use the touch event to do something special.


Expected results:

The location bar should stay where it was before the touch move gesture.

If the intention is, to not allow any malicious script to hide the location bar and the user cannot reach it anymore there has to be a way to make it possible to get the location bar even if a malicious script would prevent it by stopping the touch events.

Right now it feels like a serious limit to any sort of drag and drop operation on mobile devices when using Firefox.

Comment 1

[Kevin Brosnan [Ex-Mozilla]]

This behavior is expected to prevent address bar spoofing. The HTML full screen API. http://www.w3.org/TR/fullscreen/ can be used to get the behavior you want.