Hello, Everyone! Sincerely hope everyone is healthy.
I have developed a custom app on my development store.
The custom app is hosted on my localhost.
I have installed the custom app on the development store successfully and got the access token too.
Then I have created new php file called as index.php.
I think the index.php file would be default entry point of any shopify app. Right?
Anyway, after creating index.php, I have clicked the custom app in the Apps list of development store dashboard.
Then the web page shows "403 Forbidden"
Attached is the screenshot of the error page.
403 Forbidden Error Page
I have found the solution for one week by googling and analyzing code, but they were not helpful.
Please help me to solve this problem.