Here is how to inspect the XHR request in Safari when you save and get the 400 error: https://stackoverflow.com/a/41499746/1723499
If you can share the full response that will help.
Here is how to inspect the XHR request in Safari when you save and get the 400 error: https://stackoverflow.com/a/41499746/1723499
If you can share the full response that will help.