Docker Nginx deployment front-end project: How to resolve blank pages and proxy exceptions?

Docker Nginx deployment front-end project: troubleshoot blank pages and proxy exceptions

When using Docker and Nginx to deploy front-end separation projects, you often encounter situations where the front-end page is blank or system exceptions after enabling Nginx proxy. This article analyzes a typical case and provides solutions.

Problem phenomenon:

Users use Docker and Nginx to deploy front-end separation projects. When the Nginx proxy is not configured, index.html can be accessed, but the page is blank; after the proxy is enabled, the system is abnormal. The backend service has been deployed normally and has been verified by Postman tests.

Analysis of the root cause of the problem:

The problem is mainly in the Nginx proxy configuration and the front-end project itself.

• Blank page (Proxy not enabled): Page blank indicates that there may be problems with the front-end project, such as static resource path configuration errors or JavaScript code errors, causing the page to not render normally.

• System exception (Enable proxy): If a system exception occurs after enabling proxy, it is likely that the Nginx proxy configuration error causes the request forwarding to fail.

Solution:

The key is to carefully check the Nginx configuration file, especially the configuration of root instructions and location blocks. One problem that is easily overlooked is the end slash of root path / .

Correctly configure the root command:

Make sure root path ends in / . For example, if the front-end project root directory is /usr/share/nginx/html , root directive should be set to /usr/share/nginx/html/ , not /usr/share/nginx/html . The lack of a trailing slash may cause Nginx to fail to load and provide front-end resources correctly, resulting in blank pages or system exceptions.

Suggested steps:

1. Check front-end project: Confirm that there are no errors in the front-end project itself, the static resource path is correct, and the JavaScript code is correct.
2. Check Nginx configuration: Double check nginx.conf file (or related configuration files), pay special attention to whether the paths in root directive and location block are correct, and make sure root path is added after adding / .
3. Redeployment: After modifying the configuration, rebuild and deploy Docker images and Nginx containers.

Through the above steps, the blank page and proxy exception problems encountered in the front-end project of Docker Nginx deployment can be effectively solved. Paying attention to details, especially the end slash of root path, often avoids unnecessary trouble.

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