The Server Endpoint Fetch Error: Mixed HTTP And HTTPS Content When Using Reverse Proxy

Mar 11, 2025 by ADMIN 87 views

Introduction

When setting up a reverse proxy with a self-hosted server, it's not uncommon to encounter issues with mixed HTTP and HTTPS content. This can lead to errors and security vulnerabilities, making it essential to understand the root cause and find a solution. In this article, we'll delve into the server endpoint fetch error and explore how to resolve it when using a reverse proxy.

Understanding the Issue

The error message you're encountering is due to the browser's security feature, which prevents loading insecure resources over a secure connection. In your case, the browser is trying to load the http://panel.my-domain.com:8080/ping endpoint, which is not served over HTTPS. This is causing the browser to block the request, resulting in the "Mixed Content" error.

Why is this Happening?

There are several reasons why this issue might be occurring:

Incorrect Configuration: The reverse proxy configuration might be incorrect, leading to the browser trying to load the insecure resource.
Missing SSL Certificate: The SSL certificate might not be properly configured or installed, causing the browser to detect the insecure resource.
Ente Server Configuration: The Ente server configuration might be incorrect, leading to the browser trying to load the insecure resource.

Resolving the Issue

To resolve this issue, you'll need to ensure that the http://panel.my-domain.com:8080/ping endpoint is served over HTTPS. Here are the steps to follow:

Step 1: Verify the Reverse Proxy Configuration

First, verify that the reverse proxy configuration is correct. Check the configuration file (e.g., nginx.conf or apache2.conf) to ensure that the http://panel.my-domain.com:8080/ping endpoint is properly configured to be served over HTTPS.

Step 2: Install an SSL Certificate

Next, install an SSL certificate for the http://panel.my-domain.com:8080 endpoint. You can use a self-signed certificate or obtain a certificate from a trusted Certificate Authority (CA).

Step 3: Update the Ente Server Configuration

Update the Ente server configuration to use the HTTPS endpoint. You can do this by modifying the endpoint setting in the Ente server configuration file.

Step 4: Test the Configuration

After updating the configuration, test the setup by visiting the https://ente.my-domain.com URL. The browser should now load the https://panel.my-domain.com:8080/ping endpoint without any errors.

Additional Tips and Considerations

Use a Trusted Certificate Authority (CA): When obtaining an SSL certificate, use a trusted CA to ensure that the certificate is recognized by the browser.
Verify the Certificate Chain: Ensure that the certificate chain is properly configured to avoid any issues with certificate validation.
Monitor the Server Logs: Keep an eye on the server logs to detect any issues with the reverse proxy configuration or the Ente server.

Conclusion

The server endpoint fetch error due to mixed HTTP and HTTPS content can be a frustrating issue to resolve. However, by following the steps outlined in this article, you should be able to resolve the issue and ensure that your reverse proxy setup is secure and functional. Remember to verify the reverse proxy configuration, install an SSL certificate, update the Ente server configuration, and test the setup to ensure that everything is working as expected.

Troubleshooting Tips

If you're still experiencing issues after following the steps outlined in this article, here are some additional troubleshooting tips to help you resolve the issue:

Check the Server Logs: Review the server logs to detect any issues with the reverse proxy configuration or the Ente server.
Verify the Certificate Configuration: Ensure that the certificate configuration is correct and properly configured.
Test the Setup: Test the setup by visiting the https://ente.my-domain.com URL to ensure that the browser loads the https://panel.my-domain.com:8080/ping endpoint without any errors.

Common Issues and Solutions

Here are some common issues and solutions to help you resolve the server endpoint fetch error:

Incorrect Reverse Proxy Configuration: Verify that the reverse proxy configuration is correct and properly configured.
Missing SSL Certificate: Install an SSL certificate for the http://panel.my-domain.com:8080 endpoint.
Ente Server Configuration Issue: Update the Ente server configuration to use the HTTPS endpoint.

FAQs

Here are some frequently asked questions to help you resolve the server endpoint fetch error:

Q: Why am I encountering the "Mixed Content" error? A: The "Mixed Content" error occurs when the browser tries to load an insecure resource over a secure connection.
Q: How do I resolve the issue? A: To resolve the issue, verify the reverse proxy configuration, install an SSL certificate, update the Ente server configuration, and test the setup.
Q: What are some common issues and solutions? A: Some common issues and solutions include verifying the reverse proxy configuration, installing an SSL certificate, and updating the Ente server configuration.
Frequently Asked Questions (FAQs) =====================================

Q: What is the "Mixed Content" error?

A: The "Mixed Content" error occurs when the browser tries to load an insecure resource over a secure connection. This can happen when a website is loaded over HTTPS, but it tries to load resources (such as images, scripts, or stylesheets) from an HTTP address.

Q: Why am I encountering the "Mixed Content" error?

A: There are several reasons why you might be encountering the "Mixed Content" error:

Incorrect Reverse Proxy Configuration: The reverse proxy configuration might be incorrect, leading to the browser trying to load the insecure resource.
Missing SSL Certificate: The SSL certificate might not be properly configured or installed, causing the browser to detect the insecure resource.
Ente Server Configuration Issue: The Ente server configuration might be incorrect, leading to the browser trying to load the insecure resource.

Q: How do I resolve the "Mixed Content" error?

A: To resolve the "Mixed Content" error, follow these steps:

Verify the Reverse Proxy Configuration: Check the reverse proxy configuration to ensure that it is correct and properly configured.
Install an SSL Certificate: Install an SSL certificate for the http://panel.my-domain.com:8080 endpoint.
Update the Ente Server Configuration: Update the Ente server configuration to use the HTTPS endpoint.
Test the Setup: Test the setup by visiting the https://ente.my-domain.com URL to ensure that the browser loads the https://panel.my-domain.com:8080/ping endpoint without any errors.

Q: What are some common issues and solutions?

A: Some common issues and solutions include:

Incorrect Reverse Proxy Configuration: Verify that the reverse proxy configuration is correct and properly configured.
Missing SSL Certificate: Install an SSL certificate for the http://panel.my-domain.com:8080 endpoint.
Ente Server Configuration Issue: Update the Ente server configuration to use the HTTPS endpoint.

Q: How do I troubleshoot the "Mixed Content" error?

A: To troubleshoot the "Mixed Content" error, follow these steps:

Check the Server Logs: Review the server logs to detect any issues with the reverse proxy configuration or the Ente server.
Verify the Certificate Configuration: Ensure that the certificate configuration is correct and properly configured.
Test the Setup: Test the setup by visiting the https://ente.my-domain.com URL to ensure that the browser loads the https://panel.my-domain.com:8080/ping endpoint without any errors.

Q: What are some best practices for preventing the "Mixed Content" error?

A: Some best practices for preventing the "Mixed Content" error include:

Use a Trusted Certificate Authority (CA): When obtaining an SSL certificate, use a trusted CA to ensure that the certificate is recognized by the browser.
Verify the Certificate Chain: Ensure that the certificate chain is properly configured to avoid any issues with certificate validation.
Monitor the Server Logs: Keep an eye on the server logs to detect any issues with the reverse proxy configuration or the Ente server.

Q: Can I use a self-signed certificate to resolve the "Mixed Content" error?

A: While it is possible to use a self-signed certificate to resolve the "Mixed Content" error, it is not recommended. Self-signed certificates are not recognized by the browser, which can lead to security vulnerabilities and other issues. Instead, use a trusted Certificate Authority (CA) to obtain an SSL certificate.

Q: How do I update the Ente server configuration to use the HTTPS endpoint?

A: To update the Ente server configuration to use the HTTPS endpoint, follow these steps:

Edit the Ente Server Configuration File: Edit the Ente server configuration file to update the endpoint setting to use the HTTPS endpoint.
Save the Changes: Save the changes to the Ente server configuration file.
Test the Setup: Test the setup by visiting the https://ente.my-domain.com URL to ensure that the browser loads the https://panel.my-domain.com:8080/ping endpoint without any errors.