I just read that some browsers would prevent HTTP polling (I guess by limiting the rate of requests)...

From https://github.com/sstrigler/JSJaC:

Note: As security restrictions of most modern browsers prevent HTTP Polling from being usable anymore this module is disabled by default now. If you want to compile it in use 'make polling'.

This could explain some misbehavior of some of my JavaScripts (sometimes requests are just not sent or retried, even if they were actually successful). But I couldn't find further information on details..

Questions

  • if it's "max. number of requests n per x seconds", what are the usual/default settings for x and n?
  • Is there any way good resource for this?
  • Any way to detect if a request has been "delayed" or "rejected" because of a rate limit?

Thanks for your help...

Stefan

ajax xmlhttprequest limit polling rate
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