Vertical scroll bounces up when clicking in-between the vertical scroll bar and the bottom arrow

[markuspaek]

XP + IE6

It happens at ​http://ckeditor.com/demo

When I click in-between the vertical scroll bar and the bottom arrow, the page scrolls down but bounces back. The same goes when I click in-between the vertical scroll bar and the top arrow.

Additional reproduction scenario moved from #5581:

In ie7, I go to http://ckeditor.com/demo

Click on the word Red in little red riding hood, just put the cursor somewhere there by clicking on the text.

Use the scrollbar to scroll down (down button on scrollbar, not the scrollbar itself, use down button).

Cannot scroll down, the focus jumps back to the cursor at the top of the page, so the whole page jumps back upwards.

This is a serious problem for my customer as they can only use IE7.

[Frederico Caldeira Knabben]

Confirmed with IE8.

[Frederico Caldeira Knabben]

#5581 has been marked as DUP. It provides a different way to reproduce it.

[Frederico Caldeira Knabben]

May be related to #5735.

[Garry Yao]

Supposed to be fixed by #5735.

[phil]

Your patch for this didn't fix #5581. Please look at #5581 to see the fix.

[Tobiasz Cudnik]

Quoting philip_andrew from #5581:

I found I can fix this bug by commenting out the following code in plugin.js in /plugins/selection/plugin.js

// IE before version 8 will leave cursor blinking inside the document after
// editor blurred unless we clean up the selection. (#4716)
if ( CKEDITOR.env.ie && CKEDITOR.env.version < 8 )
{
doc.getWindow().on( 'blur', function( evt )
{
editor.document.$.selection.empty();
});
}