_js-getResponseAsJsonOrText.js - Sometimes even if response.headers.contentType is json it is not in proper json format, so we should return text, but doing response.json() and then trying respone.text() even if response.json() fails - gives "TypeError: Already read" which means body consume, so I have to do it this way.

_js-getResponseAsJsonOrText.js

            // figure out if response is json or text
            const { status, headers:{map:{'content-type':[contentType]}} } = res;

            const isJson = contentType && contentType.includes('json');
            let reply = yield call([res, res.text]);
            if (isJson) {
                try {
                    reply = JSON.parse(reply);
                }
                catch(ignore) { console.log('failed to turn to json, Content-Type said it was json, contentType:', contentType) }
            }
            // try {
            //     reply = yield call([res, res[isJson ? 'json' : 'text']]);
            // } catch(ex) {
            //     console.log('ex when trying to get res:', ex);
            //     if (isJson) {
            //         console.log('was json but failed, so will try text');
            //         try {
            //             // this fails with "TypeError: Already read" - so i just do the read to text always, then if isJson try parsing it
            //             reply = yield call([res, res.text]);
            //         } catch(ex2) {
            //             console.log('still ex when trying to do res.text, ex2:', ex2);
            //             // leave it at undefined
            //         }
            //     }
            //     // else leave it at undefined
            // }