addMediaFromUrl() not working.

[anuzpandey]

So, I have an image path from a local development server that looks like this
https://project.test/storage/photos/1/pokemon.jpeg
which is accessible on my local computer only.

So when I try addMediaFromUrl() with the above link. it doesn't work and when I try with other images from internet, it works.

So can you please tell me if I have something wrong with my code or is this how it's supposed to be?

protected function uploadImageFromRequest(Request $request, Article $article): void
{
    if ($request->has('image_url')) {
        // $url = 'https://media.wired.com/photos/5b899992404e112d2df1e94e/master/pass/trash2-01.jpg';  // This works
        $url = $request['image_url'] // which is 'https://project.test/storage/photos/1/pokemon.jpeg'  ## Doesnt Work
        try {
            $article->addMediaFromUrl($url)
                ->preservingOriginal()
                ->toMediaCollection('image');
        }
        catch (FileCannotBeAdded $e) {
            $this->responseRedirectBack('There was some issue with the upload. Please try again.');

            return;
        }
    }
}

Thank you so much.