MarketPlace REST Api

Last week, I created a small static webpage that fetches (only GET requests) data from the atlassian marketplace rest api. I only fetch public data like our app versions details, and I hosted the page on aws and my team have started using that page.

The page was working fine with no error, but suddenly today, all the data I am fetching is failing with CORS
No 'Access-Control-Allow-Origin' header is present on the requested resource.

Was there any change on the marketplace rest api?

Well, it works now, and my page is receiving the correct headers. Really weird this has occured.