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Delayed readystatechanged handling of xmlhttprequest in IE11 RRS feed

  • Question

  • Hi,

    We're experiencing an issue in IE11 where handling the readystatechanged of a xmlhttprequest is being delayed for no apparent reason.

    When looking at a performance profile, there's an API call through xmlhttprequest, which according to the network tab is returning in 1 second. However, in the performance tab, after the request is made, nothing happens for around 28 seconds, then finally the readystatechanged handler kicks in.

    There's a 302 redirect of the network request, I don't know if that may have something to do with this. But this is only happening in IE11 and not in other browsers. I'm wondering if there may be some sort of known issue in IE11 and this kind of scenario.

    Thanks.

    Wednesday, December 19, 2018 8:02 AM