oaeproject/Hilary — pull request #838 by simong (2014-03-20 09:44:14+00:00)
Title: Intermittent test failure: previews embeddable check

```
[0m 1) Preview processor Preview generation verify default link processing checks if a url is embeddable in an iframe:
[0m[31m Uncaught AssertionError: false == true[0m[90m
at /home/travis/build/oaeproject/Hilary/node_modules/oae-preview-processor/tests/test-previews.js:700:24
at /home/travis/build/oaeproject/Hilary/node_modules/oae-preview-processor/tests/test-previews.js:302:33
at Request._callback (/home/travis/build/oaeproject/Hilary/node_modules/oae-rest/lib/util.js:9:8754)
at Request.self.callback (/home/travis/build/oaeproject/Hilary/node_modules/request/request.js:121:22)
at Request.EventEmitter.emit (events.js:98:17)
at Request. (/home/travis/build/oaeproject/Hilary/node_modules/request/request.js:978:14)
at Request.EventEmitter.emit (events.js:117:20)
at IncomingMessage. (/home/travis/build/oaeproject/Hilary/node_modules/request/request.js:929:12)
at IncomingMessage.EventEmitter.emit (events.js:117:20)
at _stream_readable.js:920:16
```