我使用这个方法获取，出现错误：

TypeError: window.getComputedStyle is not a function

    at wrapText (render.js? [sm]:19)

    at ScreenCont.renderText (screencont.js? [sm]:63)

    at ScreenCont.render (screencont.js? [sm]:55)

    at GameScene.render (gamescene.js? [sm]:86)

    at Main.render (main.js? [sm]:125)

    at Main.loop (main.js? [sm]:170)

    at VM2202 WAGameSubContext.js:1

    at Function.cbWithTimeStamp (gamePage.html:58)

    at p (VM2186 WAGame.js:1)

    at VM2186 WAGame.js:1