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Connect/Disconnect events not firing in IE #501

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gilesbradshaw opened this Issue · 7 comments

4 participants

@gilesbradshaw

This seems especially bad with internet explorer. I'm refreshing the page and not getting a disconnect event. Is there any way of periodically polling connections and dropping any which are no longer valid? - Poss wrong place to ask if so apologies

@davidfowl
Owner

Are you using the latest version of SignalR? Do you have a sample to reproduce the issue? What version of IE are you using that is causing this?

@gilesbradshaw

Hi I'm using 0.5.2 IE 9 IIS Express from within visual studio. I'll see if I can produce a sample. I guess I could implement a heartbeat from the clients and just drop connections if the heartbeat stops. I've also noticed odd behavior when pressing F5 in IE which doesn't happen on any other browser.

@gilesbradshaw

here's a v simple project that illustrates it https://github.com/GilesBradshaw/ConnectionEvents

@gilesbradshaw

did youb get time to run it? n It does seem there is definitely a bug there

@davidfowl
Owner

Yep, I can reproduce. It's just not raising the events at all on new connections for some reason.

@gilesbradshaw
@davidfowl
Owner

It's something to do with IE caching. I'm looking to see if we can fix this in the forever frame transport. Doing this will make it work:

More info http://stackoverflow.com/questions/2648053/preventing-iframe-caching-in-browser

@DamianEdwards DamianEdwards was assigned
@NTaylorMullen NTaylorMullen referenced this issue from a commit
@NTaylorMullen NTaylorMullen Fixed Issue #501
Fixed Connect/Disconnect events not firing in IE.  Issue was browser
caching bug, but was fixed by setting the src tag of hte iFrame to
nothing.
7b41733
@NTaylorMullen NTaylorMullen referenced this issue
Merged

Bug fixes #572

@davidfowl davidfowl closed this in 6f77371
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