Appstore returning error as HTML

[DonkeyOatie]

The appstore appears to be returning HTML from an API call resulting in the following error propagating from the client.Verify call (I believe its actually coming from the parseResponse method when attempting to decode JSON that is actually in HTML format. I have logged the same error from other API's that have returned HTML when JSON is expected in code I have written.

invalid character '<' looking for beginning of value

library version: 1.2.0/1.3.0
go version: 1.13.12

[ashhadsheikh]

This usually happens when there's an issue with apple servers, we have seen these issues where apple started return some sort of server errors with default HTML pages, i.e. Service unavailable.