I have a page with some D3 javascript on. This page sits within a HTTPS website, but the certificate is self-signed.
When I load the page, my D3 visualisations do not show, and I get the error:
Mixed Content: The page at 'https://integration.jsite.com/data/vis' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://integration.jsite.com/data/rdata.csv'. This request has been blocked; the content must be served over HTTPS.
I did some research and all I found what the JavaScript will make the call with the same protocol that the page was loaded. So if page was loaded via https then the rdata.csv should also have been requested via https, instead it is requested as http.
Is this because the certificate is self-signed on the server? What I can do to fix this, other than installing a real SSL certificate?
What I can do to fix this (other than installing a real SSL certificate).
You can't.
On an https webpage you can only make AJAX request to https webpage (With a certificate trusted by the browser, if you use a self-signed one, it will not work for your visitors)