版本更新后wx.canvasToTempFilePath模拟器上报错
具体错误如下：
即：
VM125:2 Uncaught SecurityError: Failed to execute ‘toDataURL’ on ‘HTMLCanvasElement’: Tainted canvases may not be exported.
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具体错误如下：
即：
VM125:2 Uncaught SecurityError: Failed to execute ‘toDataURL’ on ‘HTMLCanvasElement’: Tainted canvases may not be exported.