[MYFACES-4700] Javascript AJAX: displayError only when no faces.ajax.addOnError listener was registred

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Fix Version/s: 5.0.0, 4.0.3, 4.1.1
• Assignee: Werner Punz
• Reporter: Thomas Andraschko
• Created: 17/Dec/24 14:45
• Updated: 18/Dec/24 19:24
• Resolved: 18/Dec/24 08:14

Description

Currently writing some docs for PF exception handling and there is one difference in Mojarra and MyFaces:

In Mojarra, the error is only shown via alert, when no listener was registred and its ProjectStage Development: https://github.com/eclipse-ee4j/mojarra/blob/master/impl/src/main/resources/META-INF/resources/jakarta.faces/faces-uncompressed.js#L1442

In MyFaces, we always use console (or alert if configured) to log the error, also if listeners are defined.

I think we should at least only use console or alert, if no global listener is defined. Or only in ProjectStage Development? WDYT werpu?