[HTTPS-Everywhere] https-everywhere slow with LibreJS on

[Peter Eckersley]

Perhaps UserTrust's OCSP server is timing out?  While the bug remains
reproducible for you, it should be possible to test that hypothesis by
disabling OCSP checking (Edit->Preferences->Advanced->Encryption->Validation),
and seeing if that fixes the performance problem.

On Thu, May 31, 2012 at 12:21:24PM -0400, Loic J. Duros wrote:
> Hi:
> 
> LibreJS now works with Https-Everywhere now that I have replaced the
> use nsIXMLHttpRequest with a channel and asyncOpen.
> 
> However, I'm still having a less critical issue with
> Https-Everywhere. It seems on some sites it will take up to 30
> seconds to redirect and start loading the page. This only happens
> with both Https-Everywhere and LibreJS on.
> For instance when going to fsf.org, Https-Everywhere will redirect
> to https. Here is what the log shows:
> 
>    Got http-on-modify-request: http://fsf.org/
>    Potentially applicable rules for fsf.org:
>       Free Software Foundation
>    active rule Free Software Foundation in
>    chrome://browser/content/browser.xul ->
>    chrome://browser/content/browser.xul serial 6
>    Redirection limit is 20
>    Notifying observers of rewrite from http://fsf.org/ to
>    https://www.fsf.org/
>    Scheduling channel replacement for http://fsf.org/
>    Ran channel replacement for http://fsf.org/
>    shoulLoad for moz-icon://stock/gtk-stop?size=toolbar
>    shoulLoad for chrome://browser/skin/tabbrowser/connecting.png
>    Got http-on-modify-request: https://www.fsf.org/
>    Potentially applicable rules for www.fsf.org:
>       Free Software Foundation
>    shoulLoad for chrome://browser/skin/tabbrowser/loading.png
>    Got http-on-modify-request: http://ocsp.gandi.net/
>    no window for http://ocsp.gandi.net/
>    No applicable list rewriting http://ocsp.gandi.net/
>    Potentially applicable rules for ocsp.gandi.net:
>       Gandi
>    Got http-on-examine-response @ http://ocsp.gandi.net/
>    no window for http://ocsp.gandi.net/
>    http://ocsp.gandi.net/
>    Got http-on-modify-request: http://ocsp.usertrust.com/
>    no window for http://ocsp.usertrust.com/
>    No applicable list rewriting http://ocsp.usertrust.com/
>    Potentially applicable rules for ocsp.usertrust.com:
>    Got http-on-examine-response @ http://ocsp.usertrust.com/
>    no window for http://ocsp.usertrust.com/
>    http://ocsp.usertrust.com/
> 
> 
> and it remains stuck at this point for 20 seconds, without loading the page.
> Finally it goes on and loads the page. I've seen this happen for a
> few pages. What is causing this? Is there a way to hack Https
> Everywhere to speed up that process? Is it a timeout? :-)
> 
> Thanks,
> 
> Loic
> 
> 

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-- 
Peter Eckersley                            pde at eff.org
Technology Projects Director      Tel  +1 415 436 9333 x131
Electronic Frontier Foundation    Fax  +1 415 436 9993