Bug: User-Agent changing during a session



  • No extensions running that should affect the site in question. Extensions that I do have running: Market Monk (Amazon), Watcher+ for Amazon, Woot! Watcher This started happening about a week ago. Perhaps two releases ago? Not counting today. Maybe only one release ago. At least that I noticed. Site: fark.com Attempting to use any of their forms to submit comments on their discussion threads, or feedback through their site feedback form, results in my IP Address being blocked by their spam filter. The site admin tells me: [quote]OK, it looks like what's happening is your browser is changing its user-agent ID during the posting process, from Vivaldi to Chrome and back, which is... highly weird at best... and that's what it's dinging you for. I don't know if it's switching based on a GET vs POST request, or if it's switching based on SSL vs not-SSL, but the point is it should not be switching its user-agent ID on the fly at all.[/quote] and [quote]Here's the exact strings I'm seeing: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.64 Safari/537.36 Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.64 Safari/537.36 Vivaldi/1.0. The first is during the POST which goes over SSL, the second is during the followup GET which does not use SSL. Whether it's SSL or GET/POST in play here, I don't know; SSL would be the more likely suspect [/quote]


  • Moderator

    It's a known bug, both UAs are broken BTW.

    In the meantime you can install a User Agent changer extension and create a new UA to always force the full Vivaldi UA.

    The full Vivaldi UA can be found in the about page. Help->About or vivaldi://about

    Edit: You can contact the site admin again to let him know it's a bug.



  • hmm,…. yep, looks like that worked. Cool, thanks.


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