status: Fix XSS issues where random param values are echoed to the return page.
status: Fix XSS issues where random param values are echoed to the return page.

BUG=skia:

Review URL: https://codereview.chromium.org/1453713003

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot