In Production mode, Angular automatically reloads the page every time my data request service is executed to fetch data from the API

The Issue at Hand

I have developed an angular application that functions flawlessly on the development server. This application utilizes localStorage to store the user's JWT token, although I am aware that this may not be the most secure method.

However, the problem arises when I deploy the application to production. Strangely, upon executing the service, the page reloads causing the loss of the stored JWT token in the localStorage.

Environment Details

Operating Environment: Apache Server + Debian 9 (Production Only)

Angular CLI: 8.1.1
Node: 12.5.0
OS: win32 x64
Angular: 8.1.1

Highlighted Code

Upon investigation, I have pinpointed the code responsible for triggering this issue:

This is the function calling the API service:

    getPosts() {
        this.loading = true;
        this.mdpostsService.getFirsyMDPosts()
            .subscribe(data => {

                this.mdPosts = data['results'];
                this.mdPostsNextPage = data['next'];
                this.loading = false;
            });
    }

Here is the service code fetching the data:

    getFirsyMDPosts() {
        return this.http.get(`${environment.apiUrl}/mdposts/`)
            .pipe(map(r => {
                return r;
            }));
    }

In order to determine the root cause, I created a button that triggers the function:

<button class="btn btn-danger" (click)="getPosts()">Get Posts</button>

Answer №1

After spending several hours running tests and investigating various hosts, I have successfully identified the solution to my problem. It turns out that the issue lied in the authorization process with WSGI Django.

The fix is quite simple - just activate the WSGI authentication headers. All you need to do is insert the following line into your Apache virtual host configuration:

WSGIPassAuthorization On

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