Thushan Fernando Uncut

What a way to start the weekend, jQuery 1.4 has been released! There’s so much ubber goodness in this release I nearly fell of my chair! I have yet to muse about but most definately worth a look, the performance boosts are insane!

Had a nasty issue with jQuery + jSON + IEx just now – still at work because of it!

This bit of code works perfectly fine on Firefox and Chrome:

function onUnitsModified() {
            $.getJSON("<%=Url.Action("GetTotalUnitCount", "ProjectReaper")%>", null, function(result) {
                if(result > 0)
                  // Do stuffs here
                }
            });
            return true;
}

But in IE we’ve come to realise that the first hit is successful, future json requests ones are not hitting the ASP.NET MVC actions (I put a breakpoint). You could append a time stamp to get rid of this annoying caching bug, but alternatively you can use the ajaxSetup options to disable caching.

function onUnitsModified() {
            $.ajaxSetup ({ cache: false}); 
            $.getJSON("<%=Url.Action("GetTotalUnitCount", "ProjectReaper")%>", null, function(result) {
                if(result > 0)
                  // Do stuffs here
                }
            });
            return true;
}

Darnit! Hope someone else doesn’t waste their time trying to fix this now