Feature: #106153 - Improve DebugExceptionHandler with copy functionality
See forge#106153
Description
The debugging exception error handler (which can be set for backend and frontend error reporting) provides a large stack trace with details of an error.
This is often vital when reporting bugs in TYPO3 or debugging custom code.
The output has now been improved:
- Each stack trace segment's filename and line where the error occurred now has a "copy path" button. Clicking on it will copy the whole path, filename and line number to the browser's clipboard.
- The bottom of the page shows two buttons: One to toggle the output above to hide or reveals the file's contents. And another to copy the whole stack trace in plain text format, so that it can be forwarded in error reports.
- A brief section explains what a 'stack trace' is, and a jump functionality to get from the top to the export section is available.
Hint
The "copy to clipboard" functionality is based on JavaScript. Some
browsers like Firefox only allow access to the clipboard when
accessing the site via https. When copying fails, the condensed
output that would have been written to the clipboard is instead revealed
in a box below, so it can be manually copied.
Thanks to Olivier Dobberkau, whose extension https://github.com/dkd-dobberkau/enhanced-error-handler inspired rework of this feature.
Impact
Errors and their stack traces can now be much more easily copied and forwarded for support questions, without the need to dump a HTML file or even to make screenshots.
File names and the lines of an occurred error can easily be copied to be inserted into the IDE to jump directly to the related code.