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Use xhr.onreadystatechange instead of xhr.onload (#1838)

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David Fowler 2018-04-03 15:53:16 -07:00 committed by GitHub
parent 2a71d18a6a
commit 5e38303377
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1 changed files with 15 additions and 8 deletions
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23
clients/ts/signalr/src/HttpClient.ts
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@ -84,15 +84,22 @@ export class DefaultHttpClient extends HttpClient {
xhr.timeout = request.timeout; xhr.timeout = request.timeout;
} }
xhr.onload = () => { xhr.onreadystatechange = () => {
if (request.abortSignal) { if (xhr.readyState === 4) {
request.abortSignal.onabort = null; if (request.abortSignal) {
} request.abortSignal.onabort = null;
}
if (xhr.status >= 200 && xhr.status < 300) { // Some browsers report xhr.status == 0 when the
resolve(new HttpResponse(xhr.status, xhr.statusText, xhr.response || xhr.responseText)); // response has been cut off or there's been a TCP FIN.
} else { // Treat it like a 200 with no response.
reject(new HttpError(xhr.statusText, xhr.status)); if (xhr.status === 0) {
resolve(new HttpResponse(200, null, null));
} else if (xhr.status >= 200 && xhr.status < 300) {
resolve(new HttpResponse(xhr.status, xhr.statusText, xhr.response || xhr.responseText));
} else {
reject(new HttpError(xhr.statusText, xhr.status));
}
} }
}; };