BorderContainer: content is blank when splitter is dragging (IE10)

[TomZiles]

In IE10, when the mouse is down over a splitter, all content within a Content Pane control appears blank until the mouse is no longer down. Example can be found in the one of the dojo toolkit examples: http://dojotoolkit.org/documentation/tutorials/1.6/dijit_layout/demo/appLayout.html

[bill]

I see, yes I can reproduce even in trunk, on test_BorderContainer.html. Good catch.

[bill]

In [30558]:

use opacity:0 rather than filter:... on IE9 and IE10, fixes #16679 and refs #6945 on trunk, !strict

[bill]

In [30559]:

use opacity:0 rather than filter:... on IE9 and IE10, fixes #16679 and refs #6945 on 1.8 branch

[bill]

In [30560]:

use opacity:0 rather than filter:... on IE9 and IE10, fixes #16679 and refs #6945 on 1.7 branch