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immediate reject

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sunnylqm
2020-01-19 00:13:50 +08:00
parent c46fb1be3a
commit c28eec436d
1 changed files with 3 additions and 3 deletions
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6
lib/getHost.js
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@@ -1,6 +1,6 @@
let availableDomain = 'update.reactnative.cn'; let availableDomain = 'update.reactnative.cn';
function ping(domain) { function ping(domain, rejectImmediate) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
const xhr = new XMLHttpRequest(); const xhr = new XMLHttpRequest();
xhr.onreadystatechange = e => { xhr.onreadystatechange = e => {
@@ -10,7 +10,7 @@ function ping(domain) {
if (xhr.status === 200) { if (xhr.status === 200) {
resolve(domain); resolve(domain);
} else { } else {
setTimeout(reject, 5000); rejectImmediate ? reject() : setTimeout(reject, 5000);
} }
}; };
xhr.open('HEAD', `https://${domain}`); xhr.open('HEAD', `https://${domain}`);
@@ -26,7 +26,7 @@ function logger(...args) {
export async function tryBackupDomains() { export async function tryBackupDomains() {
try { try {
await ping(availableDomain); await ping(availableDomain, true);
logger('main domain ok'); logger('main domain ok');
return; return;
} catch (e) { } catch (e) {