Ionic-native/http/ngx v.s. @angular/common/http which should be used in an Ionic4 app?

Ionic Framework ionic-v3
8

Ok guys,
I have solved.

The problem was on the server.
The server uses node.js, when I’ve replaced these credentials:

cert: fs.readFileSync('./sslcert/chain.pem'),
key: fs.readFileSync('./sslcert/privkey.pem')

with these:

    cert: fs.readFileSync('./sslcert/fullchain.pem'),
    key: fs.readFileSync('./sslcert/privkey.pem')

So the fullchain is required.

Now httpClient seems to work both on Android and iOS.

cld