[JENKINS-67582] Matrix label job configuration doesn't handle labels containing the / character

When fixing SECURITY-2017 an existing issue got surfaced where if a label contains the "/" character the label doesn't get correctly handled in the job configuration page.

This is most likely due to / being used as a separator character in the js code handling the configuration widget.

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Originally reported by rsandell, imported from: Matrix label job configuration doesn't handle labels containing the / character

• assignee: kohsuke
  
• status: Open
  
• priority: Minor
  
• component(s): matrix-project-plugin
  
• label(s): ux
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 1
  
• imported: 2025-12-06
  

When fixing SECURITY-2017 an existing issue got surfaced where if a label contains the "/" character the label doesn't get correctly handled in the job configuration page.


 


This is most likely due to / being used as a separator character in the js code handling the configuration widget.

Start by locating the JavaScript that handles the matrix job configuration widget, as the issue identifies slash as a separator there. Reproduce the configuration with a label containing / and verify that the label is handled correctly and remains intact after saving.

Written by the indexing model from the issue text.