Thank you for reaching out to us. Please provide a concrete executable code example as to what exactly does not work with SSL. I understand that you have put effort into make yourself understood, but in the current form it is very ambiguous what it not working for you.

HTTPS methods surely work, we use them heavily internally, in all variants such as GET, POST, DELETE, etc. I looked at our code base and did not find an exact match for POSTing towards an HTTPs endpoint with a custom timeout, but found one for DELETEing.

You can connect to an https URL without any extra steps. I am not quite sure what you would consider "setting the flags" in your code. Depending on the endpoint you want to reach, you might have to configure your headers though. UrlInterface is not a web framework which would automate these things for you.

Here is some slightly obfuscated production code for posting towards an (https) endpoint:

Bool DoRequestPost(
	const maxon::String& endpoint, const maxon::CString& postData, Bool isFile = false, 
	maxon::DataDictionary* responseAsDict = nullptr, 
	maxon::BaseArray<maxon::DataDictionary>* responseAsArray = nullptr)
{			
	if (isFile)
	{
		additionalHeader.Set("Content-Type"_s, FormatString("multipart/form-data; boundary=@"_s, boundary)) iferr_cannot_fail("Cannot set content type"_s);
		additionalHeader.Set("Some-Token"_s, "no-check"_s) iferr_cannot_fail("Cannot set Some-Token"_s);
	}
	else
	{
		additionalHeader.Set("Content-Type"_s, "application/json"_s) iferr_cannot_fail("Cannot set content-type"_s);
		additionalHeader.Set("Accept"_s, "application/json"_s) iferr_cannot_fail("Cannot set accept datatype"_s);
	}
	url = maxon::Url();
	url.Set(maxon::URLFLAGS::HTTP_ADDITIONAL_REQUEST_HEADER, additionalHeader) iferr_cannot_fail("Cannot set additional headers"_s);
	url.Set(maxon::URLFLAGS::HTTP_POSTMETHOD, maxon::HTTPMETHOD::POST) iferr_cannot_fail("Cannot set httpmethod"_s);
	url.Set(maxon::URLFLAGS::HTTP_POSTDATA, postData) iferr_cannot_fail("Cannot set post data"_s);
	url.Set(maxon::URLFLAGS::HTTP_NO_PROXY_CACHING, true) iferr_cannot_fail("Cannot set NOPROXY");

	return DoRequest(endpoint, responseAsDict, responseAsArray);
}

Cheers,
Ferdinand