LaunchQueue

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental:This is anexperimental technology
Check theBrowser compatibility table carefully before using this in production.

TheLaunchQueue interface of theLaunch Handler API is available via theWindow.launchQueue property. When aprogressive web app (PWA) is launched with alaunch_handlerclient_mode value offocus-existing,navigate-new, ornavigate-existing,LaunchQueue provides access to functionality that allows custom launch navigation handling to be implemented in the PWA. This functionality is controlled by the properties of theLaunchParams object passed into thesetConsumer() callback function.

Instance Methods

setConsumer()Experimental: Contains a callback function that handles custom launch navigation for a PWA.

Examples

if ("launchQueue" in window) {  window.launchQueue.setConsumer((launchParams) => {    if (launchParams.targetURL) {      const params = new URL(launchParams.targetURL).searchParams;      // Assuming a music player app that gets a track passed to it to be played      const track = params.get("track");      if (track) {        audio.src = track;        title.textContent = new URL(track).pathname.slice(1);        audio.play();      }    }  });}