UP

Results 2 issues of UP

报错信息:Uncaught Error: code length overflow. (1700>1056),是否考虑更换[QRcodejs](https://github.com/KeeeX/qrcodejs)?

this extension is good! but: ![snipaste_20170729_233813](https://user-images.githubusercontent.com/16876086/28746037-0ecb08c2-74b7-11e7-9968-013ce4615504.png)