Github user gurisxie commented on the issue:
https://github.com/apache/incubator-weex/pull/844
HI, @myeveryheart there is something wrong with your pr.
It will not fill full when setViewport = 640.
please have a look.
the tc linkï¼[viewport
tc](https://github.com/apache/incubator-weex/blob/master/test/pages/modules/viewport-basic.vue)
the result pic:
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