Just to ensure easier searching I will say you're using "IBM Navigator for 
i" at this point.  This is what you get with 
http://myibmi:2001
There have been a bunch of recent changes.  You want to make sure that 
you're running IBM i 7.2 or higher (simply due to certificates) and that 
you're current on PTF's.
http://www-01.ibm.com/support/docview.wss?uid=nas8N1021347
One way (of many) to check if you're current on the http group ptf:
http://www-01.ibm.com/support/docview.wss?uid=nas8N1021657
See also APAR SE65509 at
http://www-01.ibm.com/support/docview.wss?uid=nas2SE65509
<snip>
8. Additonal browser support: 
The Safari and Edge browsers can now be used to access IBM 
Navigator for i.  IE will no longer be supported. IBM Navigator 
for i now supports the latest version of Mozilla Firefox, Google 
Chrome, Apple Safari, and Microsoft Edge.
</snip>
Although I have no idea what the word "additonal" means.  Perhaps 
something to do with sound?  :-)
When I read the APAR it gives me the impression that the support was added 
in the base of 7.2 and 7.3 but you need a PTF for 7.1 which is not on any 
cume.  You might want to check the 7.1 to 7.x PTF Cross Reference summary 
to see if there is a matching ptf for it for 7.2 or 7.3.  Little concerned 
about that base code assumption because of:
<snip>  Modified date: 18 April 2017  </snip>
http://www-01.ibm.com/support/docview.wss?uid=nas8N1012842
Rob Berendt
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