Moved Magento store from one domain to another (same host) and now admin inputs not saving

Question

I've just come across a weird, extremely frustrating issue which I've now wasted two hours trying to get to the bottom of...

I've just copied a new Magento store from one domain to another on the same server. There is currently the website on the old domain and it is duplicated on the new domain.

• Base URL's updated.
• Database credentials updated.
• Cache cleared.
• Sessions cleared.
• Server tmp directory cleared.
• The only other thing I had to do was change the redirect to base config in the database from 1 to 0 to get rid of the redirect loop.

Everything works perfectly fine on the old domain. All functionality is as expected with no errors in the logs.

On the new domain however, I cannot make any changes from the Magento admin panel. Nothing saves despite the 'changes made successfully' notification:-

• None of the checkboxes are recognised if I try to bulk delete/edit.
• None of the dropdown are recognised.
• I can click on links and perform actions (i.e reindex an individual index).

There are no errors in the log. There are no errors in the browser console.

I really have no idea how the site works fine on one domain and not on another yet I have no errors anywhere (and logging is working as I forced errors to check this).

Any ideas?

Answer 1

We eventually identified the cause of this issue.

The client had created the domain themselves on their server within the Plesk panel and had created the domain to use domain.tld instead of www.domain.tld or leaving as none (best practice). When we tried to migrate the site over to www.domain.com using the base URL, this was causing some sort of weird redirect on the save actions button (probably in the form of a 'behind the scenes' redirect loop).