bootstrap.js not using the configured basepath

bootstrap.js ignores https in a custom base path when sitting behind reverse proxy using https.

Nexus hangs at the landing page showing "Initializing" and failing to load static content like so ...

https://dev.xxxxxx.com/nexus3/static/rapture/bootstrap.js

querying bootstrap.js directly using the https address shows that it drops the 's' from the protocol

...
Ext.ns('NX.app');
NX.app.baseUrl = 'http://dev.xxxxxx.com/nexus3';
NX.app.urlSuffix = '_v=3.3.2-02';

Accessing nexus directly using http and relevant port works fine, and querying bootstrap.js directy shows the baseurl is correctly included

...
Ext.ns('NX.app');
NX.app.baseUrl = 'http://dev.xxxxxx.com:8091/nexus3';
NX.app.urlSuffix = '_v=3.3.2-02';