Intermittent failure to filter in IE 7, 8, 9 w/DataTables 1.10.4

binbrain

I am currently using DataTables 1.10.4. I am seeing an intermittent failure to filter rows in IE 7, 8, 9 (IE 10, 11 & ff & chrome work fine). The problem occurs about half the time. I've tried to hook the draw.dt event and can see that the table is attempting a redraw every time, but sometimes its simply not reflected in the display. However, if I do something like switch browser tabs and then return to the page, the table suddenly updates. We are using server-side processing. I can see that requests are being sent and returned as normal even though its not reflected in the display, but when I refocus on the page, I see another request sent immediately. From what I can tell, I think that DataTables might be using the old URL from before the filter text change, which means the requests just return the same thing, but for some reason when refocusing the correct URL is suddenly used. Any help with this would be appreciated.