You are probably loading content (such as images) with a URL that starts with "http:". Take that bit away, but leave the slashes, e.g. <code>//www.example.com/image.png</code>; your browser will load the content, using HTTPS when your page uses it. Better still, replace "http:" with "https:" so that it always uses https to load images, e.g. <code>https://www.example.com/image.png</code>.