- 当前 Bug 的表现（可附上截图） - 预期表现 - 复现路径 - 提供一个最简复现 Demo 主域发消息 let openDataContext = wx.getOpenDataContext() openDataContext.postMessage({ type: 'freinds', width: screenWidth, height: windowHeight, }) 开放域接收消息 wx.onMessage(data => { console.log('start2') }) 报错： gameThirdScriptError https://lib/WAGameSubContext.js:1: fromIndex(2) > toIndex(1)  https://lib/WAGameSubContext.js:1: fromIndex(2) > toIndex(1) <div class="eruda-json eruda-hidden"></div> at e.value (wagame://WAGameVConsole.html:27576:37881) at new e (wagame://WAGameVConsole.html:27576:36645) at t.value (wagame://WAGameVConsole.html:27576:32217) at t.value (wagame://WAGameVConsole.html:27576:31461) at f.e.(anonymous function) [as error] (wagame://WAGameVConsole.html:27576:16382) at wagame://WAGameVConsole.html:27576:19192 at Array.forEach (<anonymous>) at console._log (wagame://WAGameVConsole.html:27576:19080) at <anonymous>:1:9 模拟器上主域子域可以正常通信，但是真机上无法通信