Unable to get the data as it keeps asking for username and password in loop

[gopi014]

This is the api which I am trying to call

https://apps.na.collabserv.com/connections/opensocial/basic/rest/activitystreams/urn:lsid:lconn.ibm.com:communities.community:0b04927e-b19e-45c3-8655-2c88556e26d8/@all?rollup=true&shortStrings=true&format=atom

In browser when I try it is giving me the username password field in a loop and when I try it from my node js application I am getting 401 error. I am an IBMer and I try logging in using my intranet credentials