I am having a strange issue with Iron.
I get an HTTP ERROR 502 each time I try to access

So, the main page (americanexpress.com) goes through successfully - put your userID and password, leads to
https://global.americanexpress.com/dashboard
This almost always leads to
HTTP ERROR 502

Now, if I $trip 'dashboard' and just keep https://global.americanexpress.com
I see that I am logged on - I am able to access all other pages of the portal. Just the 'dashboard' seems to be off limits.
Will appreciate any help.
(On LINUX Mint, using Version 61.0.3200.0 (Developer Build) custom (64-bit))