• Login
    • Search
    • Categories
    • Recent
    • Tags
    • Users
    • Groups
    • Rules
    • Help

    Do more on the web, with a fast and secure browser!

    Download Opera browser with:

    • built-in ad blocker
    • battery saver
    • free VPN
    Download Opera

    Local host error 431

    Opera GX
    2
    4
    887
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • MartinKulev
      MartinKulev last edited by

      I am using OperaGX as my browser. I am a developer and I am running web applications, which visual studio hosts on local host.
      After an HTTP request is triggered, i get a:
      "This page isn’t working
      If the problem continues, contact the site owner.
      HTTP ERROR 431"
      When i host a website with a domain, I have no problems. The problem is only with local host.
      I read that deleting the cookies will fix the issue, which it did fix it, but logged me out from every website I ever used. The problem came back a few hours after I deleted the cookies. I have no issues if I start my application on any other browser. I can delete the cookies once again, but if that fixes the problem only for a couple of hours with the cost of signing me out from every website, what's the point?
      I've used OperaGX for a few years and I've never had this issue. I don't know if a recent update is causing this, but I would really appreciate any help, because I don't want to switch broswers.

      Reply Quote 0
        burnout426 1 Reply Last reply
      • burnout426
        burnout426 Volunteer last edited by

        Are you using http://127.0.0.1/ or http://localhost?

        HTTP ERROR 431

        I see that can be caused if one of Opera's request headers it sends (like Referer) are too long or if too many cookies are sent. Since you said clear cookies helps for a bit, it might be the latter. But, not sure why Opera would be different compared to other Chromium-based browsers.

        Does it happen with a test standalone installation of Opera too?

        Reply Quote 0
          1 Reply Last reply
        • burnout426
          burnout426 Volunteer @MartinKulev last edited by

          @martinkulev said in Local host error 431:

          I read that deleting the cookies will fix the issue, which it did fix it, but logged me out from every website I ever used.

          You can goto the URL opera://settings/content/all and search just for 127.0.0.1 or localhost or whatever to narrow down the results just for the local server and click "Delete displayed data". That way, it won't log you out of other sites.

          Reply Quote 1
            MartinKulev 1 Reply Last reply
          • MartinKulev
            MartinKulev @burnout426 last edited by

            @burnout426
            Thank you very much. Didn't know the option to delete the data only for a specific domain (in my case local host) existed. That fixed my isssue.

            Reply Quote 1
              1 Reply Last reply
            • First post
              Last post

            Computer browsers

            • Opera for Windows
            • Opera for Mac
            • Opera for Linux
            • Opera beta version
            • Opera USB

            Mobile browsers

            • Opera for Android
            • Opera Mini
            • Opera Touch
            • Opera for basic phones

            • Add-ons
            • Opera account
            • Wallpapers
            • Opera Ads

            • Help & support
            • Opera blogs
            • Opera forums
            • Dev.Opera

            • Security
            • Privacy
            • Cookies Policy
            • EULA
            • Terms of Service

            • About Opera
            • Press info
            • Jobs
            • Investors
            • Become a partner
            • Contact us

            Follow Opera

            • Opera - Facebook
            • Opera - Twitter
            • Opera - YouTube
            • Opera - LinkedIn
            • Opera - Instagram

            © Opera Software 1995-