库版本更新后wx.canvasToTempFilePath()函数调用不成功，怎么办啊！是API的问题吗？

canvas的wsxx代码如下：

<canvas canvas-id=“combineCanvas” style=“height:{{pictureHeight}}px;width:{{windowWidth}}px;position:absolute;z-index =-1;”

wx.canvasToTempFilePath()函数调用如下：

wx.canvasToTempFilePath({

canvasId: ‘combineCanvas’,

success: function (res) {

var result = res.tempFilePath

/*

       wx.saveImageToPhotosAlbum({

         filePath: res.tempFilePath,

       })*/

var endorid = that.data.endorid

wx.redirectTo({

url: ‘/pages/addStriker/addStriker?imageUrl=’ + result+’&endorid=’ + endorid,

})

}

})