Javascript sometimes fails to run even though it's allowed #399

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2. gorhill commented on Aug 19, 2014

   

   gorhill

   on Aug 19, 2014

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   when first opening my browser with about 10 tabs, I will occasionally see the complaint from Gmail that Javascript must be enabled

   By the way you describe it, quite certainly due to the fact that extensions cannot block the browser in Chromium-based browsers.

   HTTPSB naturally works in block-all mode, so here is what is probably happening:

   1. Launch the browser
   2. HTTPSB is loaded and launched by the browser
   3. HTTPSB starts the reading of all the user settings + filter lists
   4. The GMail tab is loaded in the browser
   5. HTTPSB blocks javascript in GMail tab (because it blocks by default)
   6. HTTPSB finishes the reading of all the user settings + filter lists
   7. Now HTTPSB will correctly allows/blocks net request as per user's settings
   8. But the GMail tab was already loaded, so too late for the proper settings to take effect

   You would need to force refresh the GMail tab to ensure the tab works properly as per your allow/block rules which are now fully loaded.

   It's by design that the browser doesn't allow extensions to block web pages, so there is nothing I can do.
3. Tanath commented on Sep 3, 2014

   

   Tanath

   on Sep 3, 2014

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   Many Google pages depend on other domains too, like gstatic.com googleusercontent.com and ggpht.com.
5. gorhill commented on Sep 3, 2014

   

   gorhill

   on Sep 3, 2014

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   I am working to speed up load time with uBlock, will see how well this help. If it does work well for uBlock, then this means the issue could also be mitigated for HTTPSB. I use the word "mitigated" because as said, it's a by-design that extensions can't block the browser, so the only solutions left are to speed up load time of extensions and hope extensions will win the race and load fully before tabs.
7. gorhill commented on Sep 3, 2014

   

   gorhill

   on Sep 3, 2014

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   I just saw that Opera 23 has a setting "Delay opening of background tabs", which mitigates the problem here -- at least for those tabs which are not in the foreground at load time.