#905: Intersection Observer Scroll Margin

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Opened Sep 30, 2023

Hello TAG reviewers!

I'm requesting a TAG review of "Intersection Observer Scroll Margin".

Intersection Observer scrollMargin allows developers to observe targets inside nested scroll containers that are currently clipped away by the scroll containers. This is achieved by expanding the container's clipping rect by the scrollMargin when calculating the intersection.

Further details:

  • I have reviewed the TAG's Web Platform Design Principles
  • Relevant time constraints or deadlines: Implementation complete
  • The group where the work on this specification is currently being done: w3c
  • The group where standardization of this work is intended to be done (if current group is a community group or other incubation venue): w3c
  • Major unresolved issues with or opposition to this specification: None
  • This work is being funded by: Google

You should also know that...

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💬 leave review feedback as a comment in this issue and @-notify tcaptan-cr

Discussions

2023-11-13

Minutes

Rossen: the explainer is an issue...

Lea: we could ask forn an explainer and move on...

Dan: [leaves reply]

2023-11-20

Minutes

Rossen: looks like they haven't replied to us... Original issue ... still only an issue and not an explainer... No update based on last week's ask... I'm somewhat familiar with the issue but prefer to stick to the process even if's just to improve habits.

Dan: [reaches out to chris harrelson]

2023-12-11

Minutes

Rossen: it's important to have this ability as a further optimisation, trying to express and capture the ened user behaviour from something deep in the layout pipeline like this is difficult and maybe the author has found a challenge.. I'm fine with moving forward with this one

Peter: close satisfied?

Rossen: yep

Rossen to leave feedback and close as satisfied