how can I get access token from site?

when i open site https://aiesec.org/ and check it in network console - i can see some GET requests

http://ift.tt/2jUjrNP

http://ift.tt/2xxnggW

http://ift.tt/2jU9Vui

http://ift.tt/2xwEOcS

http://ift.tt/2jTFtAp

i want to get access_token=* from one of this GET requests. how can i do this?