Try and handle flask-socketio 5.3.0 in a docker container correctly.

chasemapper/__init__.py

@@ -8,4 +8,4 @@
 
 # Now using Semantic Versioning (https://semver.org/)  MAJOR.MINOR.PATCH
 
-__version__ = "1.4.2"
+__version__ = "1.4.3"

horusmapper.py

@@ -1262,11 +1262,21 @@ def emit(self, record):
         "Starting Chasemapper Server on: http://%s:%d/"
         % (chasemapper_config["flask_host"], chasemapper_config["flask_port"])
     )
-    socketio.run(
-        app,
-        host=chasemapper_config["flask_host"],
-        port=chasemapper_config["flask_port"],
-    )
+    try:
+        socketio.run(
+            app,
+            host=chasemapper_config["flask_host"],
+            port=chasemapper_config["flask_port"],
+            allow_unsafe_werkzeug=True
+        )
+    except TypeError as e:
+        print(e)
+        logging.debug("Not using allow_unsafe_werkzeug argument.")
+        socketio.run(
+            app,
+            host=chasemapper_config["flask_host"],
+            port=chasemapper_config["flask_port"]
+        ) 
 
     # Close the predictor and data age monitor threads.
     predictor_thread_running = False

requirements.txt

@@ -1,7 +1,7 @@
 --no-binary eccodes
 cusfpredict
-flask==2.2.2
-flask-socketio==5.2.0
+flask
+flask-socketio
 lxml
 numpy
 python-dateutil