Disable ssl Http Request using angular's HttpClient


I’m developing a small app to connect to a poorly developed API that requires Http requests without SSL verification. How can I make a Post request disabling SSL in Ionic?

The app will be deployed using ionic 3 build, publishing the www folder in a IIS server, its meant to be accessed only through the company’s intranet using chrome.

I have tested the API using Postman, manually disabling the SSL and it works.