unit tests failing in safari browsers

[jsnellbaker]

Type of issue

bug?

Description

There are a few of unit test failures in safari ever since we merged #3182

The errors are occurring within the consentManagement_spec.js file, which is not touched by that PR. But they have been consistently failing due to a script error (:0) type message.

The tests have been temporarily disabled to remove the issue with the master build (see #3186), but we need to investigate to see what's going wrong.

Below are links to the cricleci builds with the failures:
https://circleci.com/gh/prebid/Prebid.js/647
https://circleci.com/gh/prebid/Prebid.js/646

Possible reference?
https://stackoverflow.com/questions/5913978/cryptic-script-error-reported-in-javascript-in-chrome-and-firefox/7778424#7778424