Description

This is a collection of the things missing from the proposed Widget v2 postMessage API proposal (found here: https://docs.google.com/document/d/1uPF7XWY_dXTKVKV7jZQ2KmsI19wn9-kFRgQ1tFQP7wQ/edit).

• No requestId field coming from Riot
• No widgetId field coming from Riot (this sounds like it's required in the proposal)
• Screenshot button doesn't show up on widgets when the capability is requested
• Sending a screenshot leads to errors (assuming you patch Riot to show the button) This is my fault for not sending a Blob, like the proposal says

Version information

• Platform: web (in-browser)
• Browser: Chrome 65
• OS: Windows 10
• URL: riot.im/develop