POST request sent twice

[balabanmario]

Hello, I think there is an issue with Postman Chrome Extension ver 4.1.3: It sends the POST request twice. Here is the raw POST I'm trying to execute:

POST /myapp/rest/report/pdf/report/client/1/spoke/2 HTTP/1.1
Host: localhost:8989
network-id: 1
current-user-id: 3
networkShortName: debank
Cache-Control: no-cache
Postman-Token: 87f92704-0c5d-1405-3e16-9f366d107fcd

{
     "forecastIds": [4]
}

The post generates a pdf file that is returned to the caller. I have tried the same request with other REST client and the request is sent only once. OS: osx yosemite Chrome Version 49.0.2623.110 (64-bit) Thanks.