Skip to content

[Replays] Ability to exclude specific DOM Elements from Mutation Tracking #16831

@dalnoki

Description

@dalnoki

Problem Statement

The mutation tracking system currently halts replay when significant DOM mutations are detected, with the message:
“Significant mutations detected (N). Replay is now stopped to prevent poor performance for your customer.”

This is helpful for ensuring performance, but it lacks a way to exclude specific DOM elements from mutation tracking (elements that are safe to ignore).

In the customer's case, a specific <div> generates frequent mutations due to an SVG visualization library (D3.js). These mutations are expected and not relevant to user interaction tracking. However, they contribute heavily to the mutation count, triggering the above warning and halting replay.

They don't want to increase the mutation limit globally, as that could degrade performance in real problem areas.
and also cannot change or refactor the D3 code for architectural reasons.

Solution Brainstorm

Add a configuration option or API that allows developers to explicitly exclude certain DOM elements (e.g., via a CSS selector or attribute) from mutation tracking.

Product Area

Replays

Metadata

Metadata

Assignees

Projects

Status

No status

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions