When I go to a Discourse page (both here on meta.d.o, and on my own site), Firefox shows the “spinning wheel” icon (indicating that the page is still loading) for more than 20sec, even though the actual page builds completely within the first 1-5sec. This is rather irritating, and it makes the page look much slower than it is.
When I enable the “Network” debugger, I can see why this is happening: There is a request to
poll which only comes back after 25sec. Firefox waits until this is done before stopping the spinning wheel. The next poll follows immediately, but now Firefox recognizes that this is some background stuff and stops the wheel. Maybe this is related to the observation that there are sometimes two
poll requests that are made when the page is re-loaded with
F5. I don’t know if there is a way to tell Firefox that these
poll requests are background stuff that it should not keep the wheel spinning for.
This is with a clean profile with Firefox 44 on Linux.