I created a custom maintenance page which appears after setting the **maintenance.flag** file.

The custom page has a few forms which I copied from the normal page, but they are not working.
Validation and date time picking works but If I send the form then I get `503 service unavailable` in the network analysis.

[![503][1]][1]

I need the forms so that users can contact me and order stuff while the page is down.

It works without problems on the main page if the **maintenance.flag** is not set?

How can I allow the form on maintenance mode?


  [1]: https://i.sstatic.net/BNZOT.png