I have used nokia map URL as <script type="text/javascript" charset="UTF-8" src="https://api.maps.nokia.com/2.2.3/jsl.js?with=all"></script>

If I access my site using https then it giving security warning message as "The web page contains the content that will not be delivered using a secure https connection which could comprimise the security of entire web page"

Please let me know the reason of this warning