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any way to disable SPDY and/or HTTP2?

  • I have a need to run some tests with browser forced to use HTTP/1.1, or just SPDY. Anyway to configure this on recent Opera builds? Opera 44 for Windows doesn't seem to have it, though there is a mention in these forums about an older version having an option.


  • There is no such option. Don't know if there is a command line.

  • You can try passing:

    --disable-http2 --use-spdy=off

    to Opera's launcher.exe. The second one might not be needed anymore though.

    Make sure all opera processes in the task manager are closed first.

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