Webflow Blocking External Server Connection – Frustrated & Need Help

Hi everyone,

I’m at my wit’s end with Webflow and hoping someone here can help. I’m paying a significant amount for this platform, yet I keep running into issues that just shouldn’t be happening. My software designer has now given up after trying multiple workarounds to get things working, but nothing has resolved the issue.

The main problem: I’m trying to run my booking system from my own external server with an SSL certificate, but Webflow seems to be blocking the connection. No matter what I try, I either get an invalid response or the connection is completely blocked. The frustrating part? It only works on my local machine.

I need to know—has anyone successfully run an external booking system or similar setup while hosting their site on Webflow? Does Webflow block external server connections even when using a proper SSL setup?

Would really appreciate any insight or solutions. Given how much I’m paying, I shouldn’t have to deal with these kinds of issues.

Thanks in advance!

Webflow can’t block your external server connections.

Webflow delivers HTML, and your browser is then responsible for retrieving all of the necessary assets, scripts, CSS files, and so on. Webflow isn’t involved.

You’ll need to look at your integration and how you’re trying to access your content. If you have scripts accessing API endpoints the problem is most likely that your hosting setup is not configured properly to support CORS.

Modern browsers require “permission” via CORS before they will retrieve certain types of content from scripts.

Thanks for the response. The server is already set up with CORS to accept both GET and POST requests from my site. We even tested it by allowing all traffic, but the issue persists. When we tried it with an SSL certificate, we still received an “unauthorized” error.

Would investing in a genuine SSL certificate help resolve this issue? I want to make sure the SSL setup isn’t contributing to the problem. Let me know your thoughts.

You mean the SSL cert generated for your app server? Yes that’s the most likely issue, it needs to be trustworthy to the browser which means a valid authority.

It’s the most likely cause.

Your Webflow SSL cert is fine, it’s typically provisioned through Let’s Encrypt, and as you can see, your browser loads your website fine.

Hey @Grant1 — Joshua here from the Webflow Support Team. If you’re still experiencing issues, I know our Technical Support would love diving into this with you. Feel free to submit a ticket at support.webflow.com and DM me your ticket number