[wrt][XWALK-1591]Fix XWALK-1591

[Detailed commit message (if have)]
Impacted TCs num(approved): New 0, update 3, deleted 0
Unit test platform: [tizen]
Unit test result summary: Pass 3, Fail 0, Blocked 0
Merge pull request #608 from linshen/update-rt01

[wrt][XWALK-1591]Fix XWALK-1591