Function httpRedirectFetch

deps/undici/undici.js:13979–14037

(fetchParams, response)

    }
    __name(httpFetch, "httpFetch");
    function httpRedirectFetch(fetchParams, response) {
      const request = fetchParams.request;
      const actualResponse = response.internalResponse ? response.internalResponse : response;
      let locationURL;
      try {
        locationURL = responseLocationURL(
          actualResponse,
          requestCurrentURL(request).hash
        );
        if (locationURL == null) {
          return response;
        }
      } catch (err) {
        return Promise.resolve(makeNetworkError(err));
      }
      if (!urlIsHttpHttpsScheme(locationURL)) {
        return Promise.resolve(makeNetworkError("URL scheme must be a HTTP(S) scheme"));
      }
      if (request.redirectCount === 20) {
        return Promise.resolve(makeNetworkError("redirect count exceeded"));
      }
      request.redirectCount += 1;
      if (request.mode === "cors" && (locationURL.username || locationURL.password) && !sameOrigin(request, locationURL)) {
        return Promise.resolve(makeNetworkError('cross origin not allowed for request mode "cors"'));
      }
      if (request.responseTainting === "cors" && (locationURL.username || locationURL.password)) {
        return Promise.resolve(makeNetworkError(
          'URL cannot contain credentials for request mode "cors"'
        ));
      }
      if (actualResponse.status !== 303 && request.body != null && request.body.source == null) {
        return Promise.resolve(makeNetworkError());
      }
      if ([301, 302].includes(actualResponse.status) && request.method === "POST" || actualResponse.status === 303 && !GET_OR_HEAD.includes(request.method)) {
        request.method = "GET";
        request.body = null;
        for (const headerName of requestBodyHeader) {
          request.headersList.delete(headerName);
        }
      }
      if (!sameOrigin(requestCurrentURL(request), locationURL)) {
        request.headersList.delete("authorization", true);
        request.headersList.delete("proxy-authorization", true);
        request.headersList.delete("cookie", true);
        request.headersList.delete("host", true);
      }
      if (request.body != null) {
        assert(request.body.source != null);
        request.body = safelyExtractBody(request.body.source)[0];
      }
      const timingInfo = fetchParams.timingInfo;
      timingInfo.redirectEndTime = timingInfo.postRedirectStartTime = coarsenedSharedCurrentTime(fetchParams.crossOriginIsolatedCapability);
      if (timingInfo.redirectStartTime === 0) {
        timingInfo.redirectStartTime = timingInfo.startTime;
      }
      request.urlList.push(locationURL);
      setRequestReferrerPolicyOnRedirect(request, actualResponse);
      return mainFetch(fetchParams, true);