w3c/web-platform-tests — pull request #1006 by yuanyuanzou (2014-05-23 03:33:08+00:00)
Title: Need clean or hide the area of dump result  json after clicking start button again

we check the dump json result,and start test. The dump json area show in the bottom of the page .but we when restart the test ,the dump json area does not hide or clear.