event.respondWith((async () => {

const formData = await event.request.formData();

const link = formData.get('link') || '';

saveBookmark(link);

return new Response('Bookmark saved: ' + link);

const responseUrl = await saveBookmark(link);

return Response.redirect(responseUrl, 303);

})());

});

</pre>

<code>url</code> with a short link to fit into the message size.

</li>

</ul>

<p>

As with HTML forms, replying to a POST request with a

<a data-cite="!RFC7231#section-6.4.4">303 See Other</a> redirect

is highly recommended, as it avoids the POST being submitted a

second time if the user requests a page refresh.

</p>

</section>

<section data-link-for="WebAppManifest">

<h2>