Playground block not loading in an iframed editor

[adamziel]

Adding the Playground block on my WordPress.com blog results in this progress bar stuck at 0%:

For context, I've fixed these two issues earlier today and it solved the exact same problem on my Local site and in Playground, but not on WordPress.com:

• Set the API context when using Comlink.wrap() wordpress-playground#1085
• Fix: Playground not starting due to a race condition wordpress-playground#1084

[adamziel]

Fixed in WordPress/wordpress-playground#1085