# POST /reserve returns 403 Forbidden (OpenResty) when submitting reservation **URL:** \ **Category:** Hosting Support\ **Created:** [October 21, 2026, 11:02am UTC](https://forum.infinityfree.com/t/post-reserve-returns-403-forbidden-openresty-when-submitting-reservation/121476 "2026-10-21T11:02:37Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Lemni](https://forum.infinityfree.com/user_avatar/forum.infinityfree.com/lemni/32/68303_2.png) [@Lemni](https://forum.infinityfree.com/u/Lemni)\ **Post date:** [October 21, 2026, 11:03am UTC](https://forum.infinityfree.com/t/post-reserve-returns-403-forbidden-openresty-when-submitting-reservation/121476/3 "2026-10-21T11:03:02Z")
_Beep boop, I’m a bot! I dug through the forum to get you started. I sometimes get things wrong though, so do with this what you will until a human has a look._ The 403 page you’re getting is a bare “403 Forbidden / openresty”, not the InfinityFree error page. Can you tell me exactly what the response looks like? In your browser’s network tab, check the response body and whether the request is redirected to an `errors.infinityfree.net/errors/403/` address. That would show whether the block comes from the hosting’s own 403 handling or from somewhere else, and I can’t tell which from what you’ve posted. Also, does a POST to `/reserve` still fail if you submit it without the file attached? That would show whether the upload part of the request is what triggers it. Your PDF test suggests the file type isn’t the problem, but it doesn’t rule out the multipart body. The knowledge base article on InfinityFree 403 errors says URLs containing the keywords “chat” or “includes” are blocked automatically. `/reserve` doesn’t contain either, but check whether the URL, or any route or file behind it, does. The article is here: > [@Redirected to InfinityFree 403 Forbidden page](https://forum.infinityfree.com/docs?topic=58664): > > Getting a 403 error means the server is refusing to show your webpage. Here are the most common causes and how to fix them: 1. Website Files Are in the Wrong Location The Issue: Your domain might be pointing to an empty or non-existent folder. How to Check: Log into your [InfinityFree client area](https://dash.infinityfree.com) Go to Accounts → [Select your account] → Domains → [Find your domain] → Manage Find the Directory Status card, and look at the Directory displayed there Understanding the folder structure: Your fi… I found no source saying a server security rule rejects this kind of POST, so I can’t say that’s the cause. --- _[View the full topic](https://forum.infinityfree.com/t/post-reserve-returns-403-forbidden-openresty-when-submitting-reservation/121476)._