As mentioned in https://github.com/backdrop/backdrop-issues/issues/1135, I think adding item attributes (that are never used) for each delta of a field creates unnecessary complexity. I propose we remove the item attributes in both theme_field() and field.tpl.php.
GitHub Issue #:
1352
Recent comments
This is good enough, but maybe the module maintainer would like to add such a feature.
specific webform permissions
This should be allowed atleast on private files directory. Accepted your answer though.
How to upload js and gz files
This is a security precaution. It's not recommended and it's not documented in the settings.php file, but you can set allow_insecure_uploads to be TRUE if you wish to allow uploading files like...
How to upload js and gz files