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<!DOCTYPE html>
<script>
// Helper page loaded inside iframes to test navigator.install() restrictions.
// Receives a postMessage with {id}, attempts to call navigator.install(),
// and reports the result back via postMessage.
window.onmessage = function(e) {
const id = e.data['id'];
if (typeof navigator.install !== 'function') {
window.top.postMessage({
id: id,
result: 'navigator.install is not available'
}, '*');
return;
}
// navigator.install() returns a rejected promise for precondition failures
// (permissions policy, sandbox, main-frame, user activation).
navigator.install().then(function() {
window.top.postMessage({id: id, result: 'ok'}, '*');
}).catch(function(error) {
window.top.postMessage({
id: id,
result: 'navigator.install failed: ' + error.name,
errorName: error.name,
errorMessage: error.message
}, '*');
});
};
</script>