Add the Twitch CDN to the new default CSP for Extensions
A Twitch Extension may choose to show profile images user or emotes of a channel.
At any given moment Twitch could change the CDN for those images from "static-cdn.jtvnw.net" to something else.
Under the new CSP policy, Extension developers need to define those URL's
But the current CSP doesn't include the Twitch CDN for image content in the default CSP.
So a developer adds
static-cdn.jtvnw.net to their supported content domains.
If Twitch changes this, then the extension developer has to deploy an update including the new URL/domain in their CSP list
The default CSP should include Twitch CDN's by default and developers do not need to include them manually.
Last week the domain was added to the img-src directive so developers do not have to specify this in their own allowlists.