SaaS Endpoint Protection fails to update and you see the following error message in the update window:
BMI_LOAD is undefined
The SaaS Endpoint Protection system tray icon eventually shows the error condition symbol.
However this might have other ramifications in terms of intermediate caching servers, but as long as this isn’t included on the image files it shouldn’t have that much of an effect.
EDIT: If a site is behind Google PageSpeed - this header would cause the page not to be rewritten, perhaps impacting CloudFlare sites too… personally I would prefer knowing the site is loaded without errors.