LaunchParams: files property

Limited availability

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

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The files read-only property of the LaunchParams interface returns an array of FileSystemHandle objects representing any files passed along with the launch navigation via the POST method.

Value

A read-only array of FileSystemHandle objects.

Examples

js
if ("launchQueue" in window) {
  window.launchQueue.setConsumer((launchParams) => {
    if (launchParams.files) {
      const files = launchParams.files;
      for (file in files) {
        // Do stuff with file handles
      }
    }
  });
}

Specifications

Specification
Web App Launch Handler API
# ref-for-dom-launchparams-files-1

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
files
Experimental

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.

See also