Why Does My Go Web App Return a 404 for CSS Files?

404 Not Found: Resolving CSS File Paths in Go Web Applications

Despite adhering to established guidelines for rendering CSS in Go web applications, you may encounter a "404 page not found" error when attempting to access your CSS file. To rectify this issue, it's crucial to understand the significance of your working directory.

The current implementation of your server.go file utilizes a relative path to locate your CSS files. This means that the presence or absence of your CSS files depends on the directory from which you launch your application.

For instance, if you execute your application from the src folder (go run server/server.go), it can successfully locate your CSS files. However, if you initiate your application from the src/server folder (go run server.go), it will fail to locate the CSS files.

Similarly, creating a native executable from your application and launching it from the bin folder will also result in a 404 error because the CSS folder is absent from the bin directory.

To resolve this issue, you have two options:

1. Launch your application from the src folder using the command "go run server/server.go."
2. Copy the css folder to your bin folder and initiate the executable from that location. However, you must also copy other static files such as HTML templates.

By following one of these approaches, you can eliminate the 404 error and successfully access your CSS files from your Go web application.

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