Cloud flare tunnel not rendering content of site over https

Zero Trust Cloudflare Tunnel
1

What is the name of the domain?

my.techytonylab.com

What is the error number?

There is no error number

What is the error message?

“Something went wrong”

What is the issue you’re encountering

I have a home server, I use the “umbrel home” This is server utilizes docker containers and ports being opened. I am trying to set up a Cloudflare tunnel to expose certain apps, my domain loads with an SSL but the content doesn’t load o mthe site

What steps have you taken to resolve the issue?

There are way too many things to mention

What are the steps to reproduce the issue?

See this screenshot for the tunnel setup ----> Public Hostname Page - Cloudflare One 2024-11-15 at 6.00.43 PM

Screenshot of the error

Screen Shot 2024-11-15 at 6.02.18 PM.png
Screen Shot 2024-11-15 at 6.02.18 PM.png2922×1454 86.7 KB

2

I’ve was presented with an Eset Nod32 antivirus page while trying to visit your Website:

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What kind of type of content should it show?

You’ve got some CSP issues:

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If it’s a video, and you’re trying to show it over a proxied :orange: DNS record such as public hostname by cloudflared tunnel, I am afraid you might be violating the ToS.

Should use Cloudflare Stream for such cases.

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3

Umbrel 2024-11-15 at 6.15.24 PM
Umbrel 2024-11-15 at 6.15.24 PM1920×1107 73.1 KB

This is what you should be seeing - and what is “CSP”?

4

Web content is blocked by the content security policy you’re sending from your Docker container or the app itself is configured like that? :thinking:

content-security-policy: img-src *;connect-src 'self' https://apps.umbrel.com;default-src 'self';base-uri 'self';font-src 'self' https: data:;form-action 'self';frame-ancestors 'self';object-src 'none';script-src-attr 'none';style-src 'self' https: 'unsafe-inline'
1 Like
5

Ok, cool that helps some, can this be turned off or a rule be in put in place?

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6

I don’t know how the app behaves, however we can try one thing for sure and this is to remove the CSP header :thinking:

Using the menu Rules → Transform Rules → select Modify Response Header.
Create new as follows and Save it. Make sure it’s enabled (green checkbox):

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Step-by-step instructions how to navigate the Cloudflare dashboard and create one:

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7

One more thing to check is as follows as well:

8

Thank you for this. I have followed this, and this did not work, appreciate you trying through. Anything else I can do hoping to just flip the right switch and this works :slight_smile:

1 Like