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doXhr: check xhr.status

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zrose584 2020-10-09 18:49:50 +02:00
parent debc11931f
commit 205665f138
1 changed files with 5 additions and 1 deletions
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6
youtube/static/js/common.js
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@ -40,7 +40,11 @@ function getDefaultTranscriptTrackIdx() {
function doXhr(url, callback=null) { function doXhr(url, callback=null) {
var xhr = new XMLHttpRequest(); var xhr = new XMLHttpRequest();
xhr.open("GET", url); xhr.open("GET", url);
xhr.onload = (e) => {callback(e.currentTarget.response)}; xhr.onload = (e) => {
let ok = xhr.status >= 200 && xhr.status < 300;
if (ok) callback(e.currentTarget.response);
else alert(`${xhr.responseURL} status code: ${xhr.status}`);
}
xhr.send(); xhr.send();
return xhr; return xhr;
} }