Leaflet.org

A few years back I wrote a blog post about how write a fetch Promise that times out. The function was effective but the code wasn’t great, mostly because AbortController , which allows you to cancel a fetch Promise, did not yet exist. With AbortController and AbortSignal available, let’s create a better JavaScript function for fetching with a timeout: Much like the original function, we’ll use setTimeout to time to the cancellation but we’ll use the signal with the fetch request: async function fetchWithTimeout(url, opts = {}, timeout = 5000) { // Create the AbortController instance, get AbortSignal const abortController = new AbortController(); const { signal }... more →