/Web APIs

LaunchParams: files property

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.


A read-only array of FileSystemHandle objects.


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


Browser compatibility

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files 102 102 No No 88 No 102 102 No 70 No 19.0

See also

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