Toolbar doesn't currently work if an application calls flask.copy_current_request_context at any point during request handling.
Note that this decorator is typically used when an application uses threads that need access to request context.
flask.copy_current_request_context calls teardown_request on exit, resulting on real_request being pop from debug_toolbars dict ahead of time, and not being present when debug toolbar processes the response. Ultimately resulting on the toolbar not being displayed.
This PR solves this problem by allocation debug_toolbars dict inside a contextvar, so threads/coroutines will leave toolbar state from the main/parent request alone.
Toolbar doesn't currently work if an application calls
flask.copy_current_request_contextat any point during request handling.Note that this decorator is typically used when an application uses threads that need access to request context.
flask.copy_current_request_contextcallsteardown_requeston exit, resulting onreal_requestbeing pop fromdebug_toolbarsdict ahead of time, and not being present when debug toolbar processes the response. Ultimately resulting on the toolbar not being displayed.This PR solves this problem by allocation
debug_toolbarsdict inside a contextvar, so threads/coroutines will leave toolbar state from the main/parent request alone.