Among the finest issues that ever occurred to t he consumer expertise of the net has been net extensions. Browsers are highly effective however extensions convey a brand new degree of performance. Whether or not it is crypto wallets, media gamers, or different in style plugins, net extensions have change into important to daily duties.
Engaged on MetaMask, I’m thrust right into a world of constructing the whole lot Ethereum-centric work. A type of functionalities is guaranteeing that .eth domains resolve to ENS when enter to the handle bar. Requests to https://vitalik.ethnaturally fail, since .eth is not a natively supported high degree area, so we have to intercept this errant request.
// Add an onErrorOccurred occasion by way of the browser.webRequest extension API
browser.webRequest.onErrorOccurred.addListener((particulars) => {
const { tabId, url } = particulars;
const { hostname } = new URL(url);
if(hostname.endsWith('.eth')) {
// Redirect to wherever I need the consumer to go
browser.tabs.replace(tabId, { url: `https://app.ens.domains/${hostname}}` });
}
},
{
urls:[`*://*.eth/*`],
sorts: ['main_frame'],
});
Net extensions present a browser.webRequest.onErrorOccurred technique that builders can plug into to pay attention for errant requests. This API does not catch 4** and 5** response errors. Within the case above, we search for .eth hostnames and redirect to ENS.
You possibly can make use of onErrorOccurred for any variety of causes, however detecting customized hostnames is a superb one!
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