The html/dromaeo_smoke_test test is posting data which is received by the test driver page. The driving page in return assumes that the test is finished and what it got is a DOM, so it'll post the DOM back to test.dart.

But what get's actually posted is not the DOM, but rather some json:

  FAILED: dart2js-safari release_ia32 html/dromaeo_smoke_test
  Expected: Pass
  Actual: RuntimeError
  CommandOutput[dart2js]:
  CommandOutput[safari]:

  stdout:
  {"command":"inited","data":{"nTests":1}}
 
  stderr:

http://build.chromium.org/p/client.dart/builders/dart2js-safari-mac10.7-1-3-be/builds/1215/steps/dart2js-safari%20tests%20failures/logs/stdio

Marking it as flaky for now.

To make the driver page more robust, we should introduce a special "protocol" and ignore messages posted which don't follow that "protocol".

The test could also be changed to not post data to the opener / driving window page.