TypeError: error on xhr requests when registering callback param

[cdelcol]

These errors seem to happen with any WebWorks call that registers a callback parameter. For example, the following code works as expected:

blackberry.app.event.onSwipeDown(function() { alert("swipe down"); });

But produces an error like the following:

index.html:190 XHR finished loading: "webworks://blackberry/app/event/onSwipeDown?onClick=0". index.html:185 TypeError: 'null' is not an object (evaluating 'response.Response')

The behaviour is the same with the following functions:

blackberry.app.event.onForeground(cb); XHR finished loading: "webworks://blackberry/app/event/onForeground?onClick=2". index.html:185 TypeError: 'null' is not an object (evaluating 'response.Response')

blackberry.app.event.onBackground(cb); index.html:190 XHR finished loading: "webworks://blackberry/app/event/onBackground?onClick=1". index.html:185 TypeError: 'null' is not an object (evaluating 'response.Response')

Besides the errors in the log messages, we don't see any problems with functionality.

[cdelcol]

These errors appear to be related to improvements in 2.0 re: the caching of XMLHttpRequests performed via conditional GET. The PlayBook behaviour is completely valid, but has changed in some way between 1.0 and 2.0

[avanderveen]

This issue is likely the same as, or related to, this issue; for which there is a fix.