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I believe the following is an accurate report:

* The i is remote, reached by VPN.  Lets call
"i.server.com:10000/web/services/Oceans" TheURL. This is a web
service providing a short list of 5 oceans from QMYLIB/OCEANSP.
* There is also an HTTP server set up on the TheURL's domain with a
website using JavaScript.  That JavaScript presents a web page with
a nicely formatted layout and attempts to retrieve the Oceans data
from TheURL.  It fails with the CORS failure.
* Eclipse is installed on my PC and the same JavaScript set-up is
installed there, pointing at TheURL.  It fails with the CORS failure.

If I point my regular browser at TheURL i immediately get the 5 oceans returned to me.  Both JavaScript installations give me the CORS failure.  In other words, any regular web browser inside the VPN can easily retrieve the data, but a JavaScript server at the same domain is blocked???

Thats just ridiculous; therefore, I am misunderstanding something.



On 12/5/2018 12:15 PM, Justin Taylor wrote:
Sounds like cross-site scripting. By default, JavaScript (JS) is prevented from calling servers other than the origin server that served the initial page.

Is you JS trying to call a different server?

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