Add a prefix for nopaque's data within the application context

app/settings/routes.py

-from flask import url_for
+from flask import g, url_for
 from flask_breadcrumbs import register_breadcrumb
 from flask_login import current_user
 from app.users.settings.routes import settings as settings_route
@@ -8,4 +8,5 @@ from . import bp
 @bp.route('/settings', methods=['GET', 'POST'])
 @register_breadcrumb(bp, '.', '<i class="material-icons left">settings</i>Settings')
 def settings():
+    g._nopaque_redirect_location_on_post = url_for('.settings')
     return settings_route(current_user.id)

app/users/settings/routes.py

@@ -23,7 +23,7 @@ def settings(user_id):
         abort(403)
 
     redirect_location_on_post = g.pop(
-        'redirect_location_on_post',
+        '_nopaque_redirect_location_on_post',
         url_for('.settings', user_id=user_id)
     )