catch error parsing syndicate-to response

woodwind/views.py

@@ -366,6 +366,7 @@ def update_micropub_syndicate_to():
     if content_type:
         content_type = content_type.split(';', 1)[0]
 
+    try:
         if content_type == 'application/json':
                 blob = resp.json()
                 syndicate_tos = adapt_expanded(blob.get('syndicate-to-expanded'))
@@ -379,6 +380,9 @@ def update_micropub_syndicate_to():
 
         flask_login.current_user.set_setting('syndicate-to', syndicate_tos)
         db.session.commit()
+    except ValueError as e:
+        flask.flash('Could not parse syndicate-to response: {}'.format(e)
+
 
 
 @views.route('/deauthorize')