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    3.2 JSON Parse error: Unrecognized token '<' Password bug

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    • Charlieundefined
      Charlie
      last edited by

      @alankilian

      Thank you so much for your response, but I have no clue how I would go about changing this, as I have no clue where these files (don't even know if the files sit on the Duet, lol).

      alankilianundefined 1 Reply Last reply Reply Quote 0
      • alankilianundefined
        alankilian @Charlie
        last edited by

        @Charlie "Ive diffchecked both the "pollconnector.js" and the "BaseConnector.js" files against the files in GitHub and they appear to be identical. Im pretty out of my depth when it comes to coding, so any help would be greatly appreciated."

        Oh, I figured if you checked those files you'd be ready-to-go. My machine is at the lab and I haven't been going in there due to COVID-19, so I can't check.

        I don't know where the files are either, but the .zip file has them in: store\machine\connector

        Is that a place on your Duet?

        SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

        Charlieundefined 1 Reply Last reply Reply Quote 0
        • chrishammundefined
          chrishamm administrators
          last edited by

          @Charlie Thanks for the log, I'll try to reproduce this in Safari but I am surprised it tries to parse invalid JSON at some point - even because it should never attempt to parse anything once it gets back HTTP code 401.

          @alankilian BaseConnector is the base class of PollConnector and that particular function is only used when connecting. The JS files are bundled by Webpack into very few files to accelerate the initial page load.

          Duet software engineer

          1 Reply Last reply Reply Quote 0
          • Charlieundefined
            Charlie @alankilian
            last edited by

            @alankilian

            This is what I have on the SD card, and a search of the file names turned up nothing. I could be looking in the wrong place though, since I have no clue where those files sit, or how to modify them.

            Screen Shot 2021-01-09 at 12.13.10 PM.png

            1 Reply Last reply Reply Quote 0
            • alankilianundefined
              alankilian
              last edited by

              @chrishamm said in 3.2 JSON Parse error: Unrecognized token '<':

              The JS files are bundled by Webpack into very few files to accelerate the initial page load.

              I don't know what this message from @chrishamm means.

              I'm guessing that when the firmware is built a bunch of these files get packed together somehow, renamed and put somewhere on the Duet.

              Sorry I'm not better versed in the Internets-part of 3D printing.

              SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300

              Charlieundefined 1 Reply Last reply Reply Quote 0
              • Charlieundefined
                Charlie @alankilian
                last edited by

                @alankilian

                Neither do I.

                No worries! You've been super helpful, and way more knowledgeable than myself! I greatly appreciate your time.

                Since changing the browser or removing the password GCode fixed this issue, Im super happy.

                1 Reply Last reply Reply Quote 1
                • xenon2008undefined
                  xenon2008
                  last edited by

                  Hello Guys,
                  have the same Problem.
                  Updated to the latest RFF Version since 2-3 Days and now i always get this error!

                  I already uploaded the whole ZIP file again, deleted all gcodes files on the Duet Webinterface but nothing works.
                  Created also a new Thread here:

                  https://forum.duet3d.com/topic/21024/json-error-and-connection-drops/4

                  I am using Google Chrome and get this error, so i think it is not a Browser Problem..

                  Kind Regards

                  Sindariusundefined 1 Reply Last reply Reply Quote 0
                  • Sindariusundefined
                    Sindarius @xenon2008
                    last edited by

                    @xenon2008 do you happen to have a m551 in your config setting a password. The last person who was having problems removed it and it worked. Wonder if there is an issue with passwords.

                    1 Reply Last reply Reply Quote 1
                    • xenon2008undefined
                      xenon2008
                      last edited by

                      hmmm thats an idea, i really had an password in my DWC!
                      i will try this as soon as i'm at home at the printer!
                      Thanks alot!

                      1 Reply Last reply Reply Quote 0
                      • xenon2008undefined
                        xenon2008
                        last edited by

                        Good Evening,

                        sorry for the late Reply, but i must work every Day so long..
                        i now have commented out the Passwort in den config.g and rebooted my Duet 2 Wifi.
                        Currently i run a testprint, and have a look, but until yet it looks good. I hope it stays that way!

                        But if so, what i or we can do, so that i can use a Password Protection without any Errors?

                        1 Reply Last reply Reply Quote 0
                        • Phaedruxundefined
                          Phaedrux Moderator
                          last edited by

                          Did your password contain any special characters? Can you test a simple password?

                          Z-Bot CoreXY Build | Thingiverse Profile

                          xenon2008undefined 1 Reply Last reply Reply Quote 0
                          • xenon2008undefined
                            xenon2008 @Phaedrux
                            last edited by

                            @Phaedrux
                            No it is only a lowercase Word, nothing special

                            1 Reply Last reply Reply Quote 0
                            • xenon2008undefined
                              xenon2008
                              last edited by

                              Good Morning!

                              Since i have uncommented the Password Line in the config.g it seems to work?

                              How can i report this as a Bug?

                              1 Reply Last reply Reply Quote 0
                              • Phaedruxundefined
                                Phaedrux Moderator
                                last edited by

                                @xenon2008 Consider it reported. Thanks.

                                @chrishamm will be glad you were able to replicate it.

                                Z-Bot CoreXY Build | Thingiverse Profile

                                1 Reply Last reply Reply Quote 0
                                • chrishammundefined
                                  chrishamm administrators
                                  last edited by

                                  I'm sorry but I'm having trouble reproducing this issue. It's all working as expected on Windows (Firefox), Linux (Chromium), and OS X (Safari). Can you confirm that you are using RRF 3.2 and DuetWiFiServer 1.25?

                                  Duet software engineer

                                  xenon2008undefined 1 Reply Last reply Reply Quote 0
                                  • xenon2008undefined
                                    xenon2008 @chrishamm
                                    last edited by

                                    @chrishamm
                                    Yes i can Confirm:
                                    FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.2 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2021-01-05

                                    11a659d5-770e-49f0-a6aa-15b29dafc05c-grafik.png

                                    Tested with Google Chrome in Windows 10 x64 & on a Android Phone.

                                    1 Reply Last reply Reply Quote 0
                                    • fcwiltundefined
                                      fcwilt
                                      last edited by

                                      Hi,

                                      I'm running 3.2 on a Duet 3 Mini 5

                                      I didn't have M551 so I added it and rebooted.

                                      DWC came up, asked for PW, entered PW - no issues.

                                      I removed M551 and rebooted.

                                      DWC came up - no issues.

                                      Using most recent Chrome.

                                      Frederick

                                      Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

                                      1 Reply Last reply Reply Quote 0
                                      • Phaedruxundefined
                                        Phaedrux Moderator
                                        last edited by

                                        @xenon2008 can you provide the actual config.g that provokes the error? Maybe there's a special character or something in there.

                                        Z-Bot CoreXY Build | Thingiverse Profile

                                        1 Reply Last reply Reply Quote 0
                                        • xenon2008undefined
                                          xenon2008
                                          last edited by

                                          Sure, should i PM this?

                                          1 Reply Last reply Reply Quote 0
                                          • Phaedruxundefined
                                            Phaedrux Moderator
                                            last edited by

                                            if you're concerned about sharing the password, sure. You can zip it up and email it to jason@duet3d.com

                                            Z-Bot CoreXY Build | Thingiverse Profile

                                            1 Reply Last reply Reply Quote 0
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