View Full Version : Buffered scrolling issue when zoom is enabled

11 Aug 2015, 11:41 PM
Hi there.

This seems to be an Ext JS 4.1 bug, which is not reproducible in Ext 5.1 version, but I think the issue is serious enough, so let me describe it.

Steps to reproduce:
1. Open http://docs.sencha.com/extjs/4.1.3/#!/example/grid/buffer-grid.html in latest Chrome, Firefox or IE.
2. Set zooming level to 110% (do Ctrl +)
3. Try to scroll the grid to the end of the range (by mouse wheel or dragging the scrollbar, no difference)

Issue: note, that it's impossible to reach the latest record. Scrollbar starts bouncing back by 20-30 records. This case is reproducible for buffered views only. It's not a javascript issue, it's reproducible even when javascript execution is stopped via debugger, but anyway it seems to be an Ext bug, because in this example I can't repeat the same scenario: http://dev.sencha.com/ext/5.1.0/examples/grid/buffer-grid.html

Has anyone faced this issue before? Any ideas how to fix this quickly?

12 Aug 2015, 7:13 AM
Browser zoom is handled internally by each specific browser and can cause issues like you see, hence it is not really supported.