Mixed content

I have a website for a local organization they asked me to help troubleshoot a problem with – they have multiple webcams that are embedded into their WordPress site, and the cameras serve their images over plain http – the embeds are to the actual IP address of each camera.

As their site is https, recently the mixed content stopped being served altogether – ie the webcams don’t show up. If you load the camera URL in it’s own tab it loads fine (because it’s not mixed content then, just straight http)

I have access to their WordPress admin account but not their hosting itself, and am looking for a way to easily proxy the http images from the webcam so they are served up as https – and thus visible again where they are embedded in the site.

Any bright ideas?