Web/API/PresentationRequest/reconnect

When the reconnect(presentationId) method is called on a PresentationRequest presentationRequest, the user agent MUST run the following steps to reconnect to a presentation:

Input

presentationRequest, the PresentationRequest object that reconnect() was called on.

presentationId, a valid presentation identifier

Output

P, a Promise

1. Using the document's settings object run the prohibits mixed security contexts algorithm.
2. If the result of the algorithm is "Prohibits Mixed Security Contexts" and the presentation request URL of presentationRequest is an a priori unauthenticated URL, then return a Promise rejected with a SecurityError and abort these steps.
3. If the document object's active sandboxing flag set has the sandboxed presentation browsing context flag set, then return a Promise rejected with a SecurityError and abort these steps.
4. Let P be a new Promise.
5. Return P but continue running these steps in parallel.
6. Search the set of controlled presentations for a PresentationConnection that meets the following criteria: its controlling browsing context is the current browsing context, its presentation connection state is not terminated, its presentation URL is equal to one of the presentation request URLs of presentationRequest and its presentation identifier is equal to presentationId.
7. If such a PresentationConnection exists, run the following steps:
   1. Let S be that PresentationConnection.
   2. Resolve P with S.
   3. If the presentation connection state of S is connecting or connected, then abort all remaining steps.
   4. Set the presentation connection state of S to connecting.
   5. Establish a presentation connection with S.
   6. Abort all remaining steps.
8. Search the set of controlled presentations for the first PresentationConnection that meets the following criteria: its presentation connection state is not terminated, its presentation URL is equal to one of the presentation request URLs of presentationRequest, and its presentation identifier is equal to presentationId.
9. If such a PresentationConnection exists, let E be that PresentationConnection, and run the following steps:
   1. Create a new PresentationConnection S.
   2. Set the presentation identifier of S to presentationId.
   3. Set the presentation URL of S to the presentation URL of E.
   4. Set the presentation connection state of S to connecting.
   5. Add S to the set of controlled presentations.
   6. Resolve P with S.
   7. Queue a task to fire a trusted event with the name connectionavailable, that uses the PresentationConnectionAvailableEvent interface with the connection attribute initialized to S, at presentationRequest. The event must not bubble and cancelable and should have no default action.
   8. Establish a presentation connection with S.
   9. Abort all remaining steps.
10. Reject P with a NotFoundError exception.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
reconnect Experimental'	Chrome Full support 48	Edge Full support ≤79	Firefox Full support 51 Disabled' Full support 51 Disabled' Disabled' From version 51: this feature is behind the dom.presentation.controller.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 35	Safari ?	WebView Android No support No	Chrome Android Full support 48	Firefox Android Full support 51 Disabled' Full support 51 Disabled' Disabled' From version 51: this feature is behind the dom.presentation.controller.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	Opera Android Full support 35	Safari iOS ?	Samsung Internet Android Full support 5.0

Legend

Full support  

Full support

No support  

No support

Compatibility unknown  

Compatibility unknown

Experimental. Expect behavior to change in the future.'

Experimental. Expect behavior to change in the future.

User must explicitly enable this feature.'

User must explicitly enable this feature.

reconnect by Mozilla Contributors is licensed under CC-BY-SA 2.5.