Update flask_rest_jsonapi/decorators.py

Use get function to prevent KeyError when PROPAGATE_EXCEPTIONS is not set

Co-Authored-By: Areeb Jamal <[email protected]>

Author: JortdeBokx

flask_rest_jsonapi/decorators.py

@@ -79,7 +79,7 @@ def wrapper(*args, **kwargs):
                                  e.status,
                                  headers)
         except Exception as e:
-            if current_app.config['DEBUG'] is True or current_app.config['PROPAGATE_EXCEPTIONS'] is True:
+            if current_app.config['DEBUG'] is True or current_app.config.get('PROPAGATE_EXCEPTIONS') is True:
                 raise e
 
             if 'sentry' in current_app.extensions: