fix: add condition to break on HTML content in response headers

Author: flarco

api/specs/github.yaml

@@ -45,9 +45,13 @@ defaults:
         backoff_base: 2
 
       - action: break
-        condition: response.status == 422
+        condition: response.status == 422 
         message: "stopping iteration due to code 422 (Unprocessable Content)"
 
+      - action: break
+        condition: contains(response.headers.content_type, "text/html")
+        message: "returned HTML content"
+
       - action: "stop"
         condition: response.status == 403 && request.attempts > 5