Group mention prevents editing topic

Product Support

AI-generated summary

A user hellekin reported that editing a topic containing a group mention triggers a server error (500) with the message “TypeError: Discourse.Markdown is undefined”. The error appears to stem from a plugin conflict. dax suggested removing the outdated discourse-openstreetmap plugin, which hadn’t been updated in three years. hellekin pinged the plugin’s maintainer, lidel, who acknowledged the issue and created a GitHub issue. lidel later confirmed the plugin has been updated and no longer causes the error, making it safe to use again. The fix resolves the group mention editing problem.

1

Situation

After editing a topic’s description post containing a group mention, the server returns 500, preventing the edition.

Diagnostic

Log says “TypeError: Discourse.Markdown is undefined Url: https://ps.zoethical.com/assets/plugin-third-party-4d3728cb346366b10ae699230b046fac450fb2e79749c551e62df3d5756b4456.js Line: 9 Column: 12674 Window Location”:

@https://ps.zoethical.com/assets/plugin-third-party-4d3728cb346366b10ae699230b046fac450fb2e79749c551e62df3d5756b4456.js:9:12674
@https://ps.zoethical.com/assets/plugin-third-party-4d3728cb346366b10ae699230b046fac450fb2e79749c551e62df3d5756b4456.js:9:12663

It seems that one of the plugins is interfering with group mentions. But how to identify that plugin?

I had the occurrence already before upgrading to 1.9.0.beta11 but thought it was me using groups badly: I tried to send a group message, but failed with a similar error.

List of plugins

          - git clone https://github.com/discourse/docker_manager.git
          - git clone https://github.com/discourse/discourse-spoiler-alert.git
          - git clone https://github.com/discourse/discourse-voting.git
          - git clone https://github.com/discourse/discourse-solved.git
          - git clone https://github.com/discourse/discourse-assign.git
          - git clone https://github.com/angusmcleod/discourse-locations.git
          - git clone https://github.com/angusmcleod/discourse-events.git
          - git clone https://github.com/lidel/discourse-openstreetmap.git
2

Not updated for 3 years, remove it, almost certainly it is interfering

3

ping @lidel. Can you check?

Thank you @Trash for your insight.

4

@lidel created Group mention prevents editing topic · Issue #2 · lidel/discourse-openstreetmap · GitHub

5

Thank you for reporting this! :+1:

FYI I’ve just updated lidel/discourse-openstreetmap and it is safe to use again, no longer produces TypeError :cactus: