They allow advertisers to run JS on your device, and ads are a trendy way to deliver malware. People are using ad blockers not just to hide annoyances and to improve performance, but to protect themselves from bad actors.
> JavaScript or iFrame Tags: All third-party tags and tracking URLs need to be in https format.
I was on the fence about this because there is a legitimate need to bring in revenue from free users, but they should stick to audio, video and image ads.
https://spotifyforbrands.com/en-US/ad-experiences/
> JavaScript or iFrame Tags: All third-party tags and tracking URLs need to be in https format.
I was on the fence about this because there is a legitimate need to bring in revenue from free users, but they should stick to audio, video and image ads.