At around 11am PST today the Chameleon team released an update to our iFrame support that was intended to provide better support for multiple-layers of iFrames that show Chameleon Tours. For a small number of customers that had iFrames configured with subdomain origins may have seen errors reported from the Chameleon script attempting to access iFrames improperly.
The change was reverted at 2:53pm PST with the release of the new feature coming at a later date.