Safari ajax request to local http hardware device without ssl, inside a https site?

How start an ajax request to a "local" http adress (hardware device without ssl) inside a https site in safari?

Some tips are a pfx file. But a pfx file can no longer be installed on an ios device, since settings->common->certificate trust settings has no longer setting for it. There is only one line "Version" and one more "Trust Asset-Version" - no more settings are available anymore?

Any idea? Thanks!

Safari ajax request to local http hardware device without ssl, inside a https site?
 
 
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