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  1. Qt
  2. QTBUG-83312

HTTP2 protocol upgrade is broken

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Details

    • Bug
    • Resolution: Done
    • P3: Somewhat important
    • 5.15.0 Beta4
    • 5.14.1
    • Network: HTTP
    • None
    • Qt 5.14.1 on linux, but I guess it affects all platforms and all Qt versions that support HTTP2
    • All
    • 603eaa9fbb250ce1f4ec5a5a9750a115ef08a956 (qt/qtbase/5.15)

    Description

      When HTTP2 is enabled for a http (plain) request and the server supports HTTP2 upgrade, Qt does not send the HTTP/2 Connection Preface (magic) after the "HTTP/1.1 101 Switching Protocols" response is received. From what I read in the RFCs, it's hard to say if the client is really required to do so when the connection is upgraded, but:

      1. The connection hangs until a connection timeout on real HTTP2 servers
      2. curl sends the magic (and the same servers that hang with Qt work with curl)

      Attachments

        For Gerrit Dashboard: QTBUG-83312
        # Subject Branch Project Status CR V
        296306,2 H2C - make sure we send the client preface and settings 5.15 qt/qtbase Status: MERGED +2 0

        Activity

          People

            tpochep Timur Pocheptsov
            tumic Martin Tůma
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            Dates

              Created:
              Updated:
              Resolved:

              Gerrit Reviews

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