I don't remember which vendors were causing it, but yes, many inject their own JS, causing things to break and exceptions to be thrown.
Here's a StackExchange question: "How to disable Kaspersky Antivirus javascript injection?" [0].
And on Reddit: "PSA: Kaspersky injects remote javascript into all your pages. Even secure ones." [1].
[0] https://superuser.com/questions/981959/how-to-disable-kasper...
[1] https://www.reddit.com/r/privacy/comments/3frjqw/psa_kaspers...