Laravel vue page is not loading and is pending in the network tab

I got question about Laravel and VueJS. I’ve built my Vue project with npm run watch and I started my Laravel application with php artisan serve to serve the app. When I went visit my website-page, the page would not load and is continuing in a infinite loop. In my network tab, I see an API request has been sent to /js/landing.js, but he seems to be pending for the whole time.

My application is at the moment running on WSL, but I do not know what problem caused this issue.

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