Fix Android and cross origin postMessage issue #380
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cc @LonelyCpp - thanks for the project! The latest version is broken on android #378 added a fix for this. |
dat-boris
commented
Aug 16, 2025
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| if (window.ReactNativeWebView) { | ||
| // React Native WebView | ||
| window.ReactNativeWebView.postMessage(JSON.stringify(msg)); |
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Note: An interesting quirk is that adding targetOrigin here will break Android native.
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The latest version ~2.4.* is broken on Android. This is due to an oddity in react-native-webview/react-native-webview#356 that the addEventListener needs to be modified for Android WebView. This now fixes the issue.
The previous web version is also broken if we host the iframe on a different domain due to the cross-origin policy. This also ensures that we are more relaxed on targetOrigin.
Fixes #378
Testing
Tested on: