fix(ajax): Handle timeouts as errors #3653
Merged
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Description:
XHR Timeouts are not being handled properly.
It turns out the XHR timeouts fire the
readystatechange
event (with status=0, readyState=4) and then thetimeout
event. This is causingnext
to be called beforeerror
.Confirmed this behavior in Chrome, added a test for timeouts and fixed the behavior by pointing the main event handler to fire on
load
. Definitely recommend confirming this behavior and compatibility in other browsers.Fixed up our
MockXMLHttpRequest
to cause timeouts after thesend
method is called.Overall, I want to recommend moving away from this
MockXMLHttpRequest
so that we aren't re-implementing browser functionality in the tests. I saw that the current browser tests are broken, wanted to take a stab at either fixing those or porting over some integration tests to Karma. Totally open to suggestions there.This is my first contribution to rxjs, really open to feedback and suggestions!
Related issue (if exists):
#3606