SSL certificate for iframe over https on local network

Hi,

Is there a way to load a certificate into the Android Webview (I think) that displays each iframe ActionTile?

I've been doing a lot of yak shaving on this one.

Main goal: run my own local python webservice to display some content (anything; weather, notes, whatever - this is a bit of a fun task to play with)

I note that the iframe will only work if it is an https url not an http url. (Is there a way to disable this for local network addresses so I can avoid all of this faff?)

So, I enable ssl in my python Flask service - and the tile now displays a security error, as I don't have a ceritifcate.

After a LOT of faff because I don't know what I am doing, I have now successfully made a certificate, and installed it on both my Windows machine (successfully displaying my locally hosted page with no security errors; on Chrome and Internet Explorer).

I have also successfully installed the certificate on my Fire tablet, so that the Silk browser can successfully load my page without complaint.

So my certificate clear works, or at least works to a decent extent.

However, the ActionTiles iframe still says there is an ssl error when I load the panel.

Questions:
1) Is it possible to get better information on this error?
2) Is it possible to install the certificate so that ActionTiles app can actually use it? How?
3) Can I just avoid this all together by using http instead of https somehow?

Or, scrap this entire idea, does anyone else have a better method of having locally generated content shoved into a tile?

Thanks for any help,

Daniel