added colons to protocol strings

(cherry picked from commit 0a9fd8b)

Author: bobular

packages/libs/user-datasets/src/lib/Components/UploadForm.tsx

@@ -663,7 +663,7 @@ function isValidUrl(string: string) {
   } catch (_) {
     return false;
   }
-  return url.protocol === 'http' || url.protocol === 'https';
+  return url.protocol === 'http:' || url.protocol === 'https:';
 }
 
 export default UploadForm;