The ex_auth() function in src/Controller/drupalchatController.php does not provide a default value for $response, causing the following error to occur multiple times if there is no $uid:
Notice: Undefined variable: response in Drupal\drupalchat\Controller\drupalchatController->ex_auth() (line 1029 of modules/drupalchat/src/Controller/drupalchatController.php).
Needs review
1.0
Code
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