Embeds: Catch TypeErrors when casting width and height to integers

wagtail/wagtailembeds/embeds.py

@@ -155,12 +155,12 @@ def get_embed(url, max_width=None, finder=None):
     # Make sure width and height are valid integers before inserting into database
     try:
         embed_dict['width'] = int(embed_dict['width'])
-    except ValueError:
+    except (TypeError, ValueError):
         embed_dict['width'] = None
 
     try:
         embed_dict['height'] = int(embed_dict['height'])
-    except ValueError:
+    except (TypeError, ValueError):
         embed_dict['height'] = None
 
     # Create database record