demo · v136
Remote Cursor
A remote-control safety lab for a captured tab preview. The current Captured Surface Control spec forwards wheel events and exposes zoom controls; arbitrary click and keyboard forwarding are deliberately outside the API. Move over the preview to validate normalized coordinates, then try blocked click and key paths to see what must stay local.
Availability: ChromeStatus lists Captured Surface Control at Chrome 136 and the W3C draft is still incubating. Older Chrome builds may require
chrome://flags/#captured-surface-control or an origin-trial configuration. This demo keeps the ghost cursor and blocked-action checks working even when the write APIs are unavailable.
pointer: outside preview
Allowed by spec
CaptureController.forwardWheel(element) binds trusted wheel events over the preview element to the captured viewport.
Allowed by spec
Zoom methods read supported levels and adjust the captured tab from trusted handlers; the dedicated Zoom Coach concept exercises that path.
Blocked by design
Clicks, text entry, and browser shortcuts such as Ctrl+T or Ctrl+W are not Captured Surface Control APIs.