How to transfer the icecast broadcast stream to the site (located on the same server)?

Question

Apache HTTP Server

Good afternoon!

There is a VPS on Ubuntu 16.04 x64 (IP for example: 1.2.3.4)
Installed: Icecast, Apache, MySQL, vsFTPd Domain
connected: 123.com
Installed Let'sEncrypt

Icecast certificate - broadcasts radio on port 8000
Using relay, the stream is relayed to the mounted point ./deep-house
That is, you can listen to the radio at: 1.2.3.4:8000/deep-house
A virtual host is raised in Apache: DocumentRoot /var/www/123.com/public_html
And the site is filled in the /public_html folder, in which, using the AUDIO tag
, the SRC path for streaming is specified 1.2.3.4:8000/deep-house The
radio on the site is playing - everything is fine! The site opens over HTTPS.
Now I can listen to the radio by logging into my site at https://123.com/deep-house

However, when I open the page where the AUDIO tag with the radio stream is placed, the
Browser immediately changes HTTPS to HTTP and gives a warning in the console :

"Mixed Content: The page at ' https://123.com/#/deep-house ' was loaded over HTTPS, but requested an insecure audio file ' 1.2.3.4:8000/deep-house '. This content should also be served over HTTPS

A sample of my relay in the configuration file (/etc/icecast2/icecast.xml) see screenshot I need to decide how
to broadcast over HTTPS (requirement for creating a PWA)
if we locally uploaded an mp3 file to the /src/ folder.

Not so strong in Linux ...
Please respond, who dealt with Icecast