Switching from HTTP to HTTPS fails in Connection.js

[firekesti]

I'm overriding the Rest Proxy's buildUrl method like this:

request.setUrl("http://" + serverUrl + ":8080/restapi/2.0" + url);

This worked perfectly, but I needed to add support for SSL, so I changed it to this:

request.setUrl("https://" + serverUrl + "/restapi/2.0" + url);

Performing this request outside of Sencha works great, but when I try to load it in my app (using Chromium with --disable-web-security), I get a strange error:
"GET https://10.0.87.97/restapi/2.0/entry-type Connection.js:314"
There's no sign of a response code, it's just failing at that line. I looked it up,

            // start the request!
            xhr.send(requestOptions.data);

When I debugged through that line it looked like requestOptions.data was null. Why would this be happening?

[mitchellsimoens]

The data comes from the rawData, xmlData or jsonData in the request config you send. If it's not a GET, the data will also come from any params you specified in the request config so it may be null and should be valid.

[dbabyak]

I am getting a similar error with Connection.js at line 314 ('Resource failed to load') , while sending requests over HTTPS.
How to overcome it?

Thanks