Update details gets "github.com refused to connect." message

[darren-glanville]

The update feature is working great, only issue we are getting is when you click on the View version [number] details link, an error message comes up.

Console comes up with the following error: Refused to frame 'https://github.com/' because an ancestor violates the following Content Security Policy directive: "frame-ancestors 'none'".

I am using GitHub as our host for the updates using the releases.

[YahnisElsts]

Is this happening in a theme? For a theme, the "view version details" link displays the details_url in an <iframe>. Judging by the error message, the page that you're using as the details_url doesn't allow the browser to display it in a frame. Since you probably can't change the HTTP headers sent by github.com, you may have to use a different URL here.