React-native-webview: post request work in android but not in IOs.

[celciusjj]

Bug description:

I have a application with a webview, this webview have a post request, the webview works in android and get the page, but when i try in IOs does not work.

You can visualize the token in console, and the uri

the exception occurs in postman when the token is invalid, but it is not invalid because it works in postman and android.

The page not is mine

Expected behavior:
Show the page in IOs same to android.

The code

```

        nativeConfig={{props: {webContentsDebugginEnabled: true}}}
        source={{uri: navigation.getParam('uri'), method: 'POST', body: `token=${navigation.getParam('token')}`}}
        injectedJavaScript={injectedJavascript}
        onMessage={() => this.props.navigation.navigate('Main')}
        startInLoadingState={true}
        >
        </WebView>

[celciusjj]

i solve this error with

I've faced that bug too. Here is a workaround that worked for me :

headers: { 'Content-Type': 'application/x-www-form-urlencoded', }

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[PAronofsky]

i solve this error with

I've faced that bug too. Here is a workaround that worked for me :
headers: { 'Content-Type': 'application/x-www-form-urlencoded', }

Does Android automatically send this header? Anyone know what the difference is that would explain what's going on here?

EDIT: It looks like the WebView in Android is always expecting postData to be "application/x-www-form-urlencoded" encoded, which is why this works in android but not iOS:
https://developer.android.com/reference/android/webkit/WebView#postUrl(java.lang.String,%20byte%5B%5D)