wednesday

A case: ```html let testVal = new window.inner.contentWindow.RegExp(/testReg/); console.log(testVal instanceof RegExp);//false ```

The getter 'visible' was called on null

1

``` Another exception was thrown: NoSuchMethodError: The getter 'visible' was called on null. [VERBOSE-2:ui_dart_state.cc(166)] Unhandled Exception: NoSuchMethodError: The method 'toDouble' was called on null. Receiver: null Tried calling: toDouble() #0...