SEC7127: Redirect was blocked for CORS request after submitting geprocessing job

Question

Using the ArcGIS for JavaScript API 3.19, I'm submitting a job to the ExtractData geoprocessing service at: https://analysis7.arcgis.com/arcgis/rest/services/tasks/GPServer/ExtractData/submitJob The job is submitted and run successfully, and the output is created in my ArcGIS Online root folder. However, I can't figure out how to get the response back from the server. When I submit the job, the JavaScript console reports 2 errors: SEC7127: Redirect was blocked for CORS request. SCRIPT7002: XMLHttpRequest: Network Error 0x800c0014, A redirection problem occurred. This sort of makes sense to me, because the server issues a redirect to the job page. I can see that the server responds with a status of 303, and includes the URL to the job in the response. However, the code that I have to handle the response (see below) is never called. var url = _extractDataURL + "?inputLayers=" + inputLayers + "&extent=" + extent + "&clip=" + clip + "&dataFormat=" + dataFormat + "&outputName=" + outputName + "&context=" + context + "&f=" + f + "&token=" + IdentityManager.credentials[0].token; var xmlHTTPRequest = new XMLHttpRequest(); xmlHTTPRequest.onreadystatechange = function () { if (xmlHTTPRequest.readyState == 4 && xmlHTTPRequest.status == 200) { console.log(this.responseText); } } xmlHTTPRequest.onload = function () { console.log(this.responseText); } xmlHTTPRequest.open("GET", url, true); xmlHTTPRequest.send();‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ How can I configure things so that the redirect (the correct response) doesn't cause the CORS error, and so that I can handle the response and get the URL to the job?

JonathanBailey · Answer

Hi Jordan,

No, that's not what's happening. The response to submitJob is a redirect, which I believe is what is causing the CORS issue.

JordanBaumgardner · Answer

Just to clarify -

- You post your job - [MyServer]\arcgis\....

->  you get a job number back and you poll

- The response comes back with a URL with your completed job on another server? [MyOtherServer]\arcgis\...jobcomplete.

-> When you hit the url you get a CORS error and your responder is never called.

or are you getting a CORS error and hitting the same root server?

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