Why would fetch HEAD cause 10 second delay on mobile devices?

Дата публикации: 08-09-2026 23:32:31

In the below click event listener I do a HEAD request against a file to make sure it exists before I attempt to use it. It works great on desktop, but on a mobile device (I test connect to Wi-Fi), it adds ~10s delay in the JS execution. You tap a link and just nothing happens for that time, and then everything continues.
How can this be? Is there something I can change to prevent the delay?
link.addEventListener("click", async (e) => {
e.preventDefault()
const filelink = link.pathname
if((await fetch(filelink,{method: 'HEAD'})).ok == true) {
audiodlg.showModal()
player.src = filelink
document.querySelector("dialog > span").innerText = filelink.substring(filelink.lastIndexOf('/')+1)
}
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