Hello,

I'm trying to use OpenSpace in Salesforce with their given source:
 

<script type="text/javascript" src="http://www.openspace.ordnancesurvey.co.uk/osmapapi/openspace.js?key=BA08531D8339984EE0405F0AC86026A9"></script> 

but when I run the vf page gives me the following error:

"Mixed Content: The page at 'https://c.eu5.visual.force.com/apex/TestOSMaps' was loaded over HTTPS, but requested an insecure script 'http://openspace.ordnancesurvey.co.uk/osmapapi/openspace.js?key=BA08531D8339984EE0405F0AC86026A9'. This request has been blocked; the content must be served over HTTPS."

I've tried to change from http to https but it doesn't work.

Is there a way to solve this?

Thanks