Lighthouse reporting failed passive listener on a script from other host

[dKab]

Provide the steps to reproduce

1. Run LH on https://kabardinovd.com/posts/jquery/ (mobile)

What is the current behavior?

Best practices section shows failed audit
"Consider marking your touch and wheel event listeners as passive to improve your page's scroll performance." about this script:
https://www.gstatic.com/recaptcha/releases/nuX0GNR875hMLA1LR7ayD9tc/recaptcha__en.js
(host www.gstatic.com , whereas my host is kabardinovd.com)

What is the expected behavior?

As I understand lighthouse should filter out scripts from the hosts different from mine as I don't have control over them.

Environment Information

• Affected Channels: DevTools (at least, didn't try with others)
• Lighthouse version: 5.7.1
• Chrome version: 83.0.4103.116 (Official Build) (64-bit) (cohort: Stable)
• Node.js version: v12.18.2
• Operating System: Windows 10

[patrickhulce]

As I understand lighthouse should filter out scripts from the hosts different from mine as I don't have control over them.

What led you to this expectation? If it came from us, then we should fix whatever told you that.

We allow third-party assets to be filtered out of tables but Lighthouse still assesses the main content of the page no matter what host contributed to it. The page owner's control over third-party assets is whether their benefit is worth the cost of inclusion :)

[dKab]

@patrickhulce

What led you to this expectation?

This page, where it says (number 4):

Lighthouse uses the following process to identify event listeners that may affect scrolling performance:

1. Collect all event listeners on the page.
2. Filter out non-touch and non-wheel listeners.
3. Filter out listeners that call preventDefault().
4. Filter out listeners that are from a different host than the page.

[patrickhulce]

Ah thanks for raising @dKab that doc is describing a Lighthouse from ~4 years ago 😬

We'll need to update it to reflect how the audit works now (which comes straight from browser-emitted violations)