Transparency matters: an update on our latest release.

By Thomas di Luccio, on Jun 24, 2025

We recently introduced front-end observability to help you track Web Vitals and browser performance alongside your back-end metrics. Instead of announcing it first and offering it as an opt-in, the feature was automatically enabled on several projects.

That meant a JavaScript tracking probe was added to your site without your explicit consent. That’s not okay

We’ve heard your concerns, and we agree: you should always be in control of the code that runs on your application.

What we’ve done since:

  • We quickly rolled back the feature entirely a few hours after the first reports.
  • Front-end observability is going to be rolled out again on an opt-in-only basis.
  • We are designing a more rigorous release process to minimize the chances of this happening again.

What’s next?

If you have any questions, concerns, or feedback, please reach out. I’d be happy to discuss the feature and the situation with you:

Thanks for your trust and patience. 

Thomas di Luccio, Product Manager at Platform.sh for Blackfire.

To better observability and beyond

Thomas di Luccio

Thomas is Product Manager at Platform.sh for Blackfire.io. He likes nothing more than understanding the users' needs and helping them find practical and empowering solutions. He’ll support you as a day-to-day user.