Fetch problem on iOS emulator

Expo SDK
1

Hi there!

I have local API with self signed SSL certificate.
When I do request by ip on my iOS emulator:

fetch('https://192.168.100.6/users/me')
  .then(response => response.json())
  .then(json => console.log(json))
  .catch(error => console.log(error));

I see next error:

TypeError: Network request failed
    at XMLHttpRequest.self.fetch.xhr.onerror (fetch.js:441)
    at XMLHttpRequest.dispatchEvent (event-target.js:172)
    at XMLHttpRequest.setReadyState (XMLHttpRequest.js:554)
    at XMLHttpRequest.__didCompleteResponse (XMLHttpRequest.js:387)
    at XMLHttpRequest.js:493
    at RCTDeviceEventEmitter.emit (EventEmitter.js:181)
    at MessageQueue.__callFunction (MessageQueue.js:299)
    at MessageQueue.js:111
    at MessageQueue.__guard (MessageQueue.js:262)
    at MessageQueue.callFunctionReturnFlushedQueue (MessageQueue.js:110)

Also I added certificate to emulator:

screen

When I do request by domain:

fetch('https://api.av.my/users/me')
  .then(response => response.json())
  .then(json => console.log(json))
  .catch(error => console.log(error));

I see the same error:

TypeError: Network request failed
    at XMLHttpRequest.self.fetch.xhr.onerror (fetch.js:441)
    at XMLHttpRequest.dispatchEvent (event-target.js:172)
    at XMLHttpRequest.setReadyState (XMLHttpRequest.js:554)
    at XMLHttpRequest.__didCompleteResponse (XMLHttpRequest.js:387)
    at XMLHttpRequest.js:493
    at RCTDeviceEventEmitter.emit (EventEmitter.js:181)
    at MessageQueue.__callFunction (MessageQueue.js:299)
    at MessageQueue.js:111
    at MessageQueue.__guard (MessageQueue.js:262)
    at MessageQueue.callFunctionReturnFlushedQueue (MessageQueue.js:110)

I did some digging in the debug I found the error in XMLHttpRequest:

_response: "The certificate for this server is invalid. You might be connecting to a server that is pretending to be “api.av.my” which could put your confidential information at risk."

When I “Enable Network Inspect” then request works nice.
But with “Enable Network Inspect” I can’t do request for file upload:

[RNDebugger] Detected you're enabled Network Inspect and using 'uri' in FormData, it will be a problem if you use it for upload, please see the documentation (https://goo.gl/yEcRrU) for more information.

Eventually I don’t have to test file upload.

System: macOS Hight Sierra 10.13.3
Running application “main” with appParams:

{
  "rootTag": 1,
  "initialProps": {
    "exp": {
      "manifest": {
        "description": "***",
        "privacy": "unlisted",
        "logUrl": "http://localhost:19000/logs",
        "orientation": "portrait",
        "mainModuleName": "node_modules/expo/AppEntry",
        "id": "@***",
        "developer": {
          "projectRoot": "***",
          "tool": "xde"
        },
        "iconUrl": "http://localhost:19001/assets/./src/asset/icon/app-icon.png",
        "name": "***",
        "sdkVersion": "24.0.0",
        "xde": true,
        "primaryColor": "#cccccc",
        "loading": {
          "iconUrl": "http://localhost:19001/assets/./src/asset/icon/app-icon.png",
          "icon": "./src/asset/icon/app-icon.png",
          "hideExponentText": false
        },
        "isVerified": true,
        "packagerOpts": {
          "lanType": "ip",
          "minify": false,
          "urlRandomness": "ey-jvd",
          "hostType": "tunnel",
          "strict": false,
          "urlType": "exp",
          "dev": true
        },
        "ios": {
          "bundleIdentifier": "***",
          "supportsTablet": true
        },
        "bundleUrl": "***",
        "android": {
          "package": "***"
        },
        "env": {},
        "debuggerHost": "localhost:19001",
        "icon": "./src/asset/icon/app-icon.png",
        "slug": "***",
        "version": "1.0.0"
      },
      "initialUri": "exp://localhost:19000",
      "appOwnership": "expo",
      "shell": false
    }
  }
}
2

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