Files
rrweb/docs/recipes/canvas.md
Justin Halsall bcf93ca926 docs: revamp installation docs for esm and umd (#1788)
* docs: revamp installation docs for esm and umd

Document recommended install paths across the main guides and package
READMEs for rrweb, @rrweb/all, @rrweb/record, @rrweb/replay, and
rrweb-player.

Clarify three usage modes: bundler/npm, browser no-build with
import maps and +esm, and legacy UMD fallback.

* Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Apply formatting changes

* Apply suggestion from @eoghanmurray

Co-authored-by: Eoghan Murray <eoghan@getthere.ie>

* Apply formatting changes

* docs(all): streamline README usage section

Move the guide link next to the import example and remove the
duplicated Usage section to keep docs concise and easier to scan.

* docs(readme): update gzip size badges in zh-cn readme

* docs(plugins): update readme imports to scoped esm packages

Replace `rrweb` default imports and `rrweb.Replayer` usage with
`@rrweb/record` `record` and `@rrweb/replay` `Replayer` in plugin
usage examples.

Also update canvas WebRTC plugin imports to scoped `@rrweb/*`
package names to keep docs aligned with current package structure.

* docs: update docs to prefer scoped esm packages

replace `rrweb` default import examples with `@rrweb/record` and
`@rrweb/replay` across recipes and guides in en/zh-CN.

clarify package selection for new integrations, add `@rrweb/all`
convenience guidance, and refresh CDN/style import snippets for ESM and legacy UMD compatibility.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Eoghan Murray <eoghan@getthere.ie>
2026-02-17 13:59:02 +01:00

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Raw Blame History

Canvas

Canvas is a special HTML element, and will not be recorded by rrweb by default. There are some options for recording and replaying Canvas.

Enable recording Canvas

import { record } from '@rrweb/record';

record({
  emit(event) {},
  recordCanvas: true,
});

Alternatively enable image snapshot recording of Canvas at a maximum of 15 frames per second

import { record } from '@rrweb/record';

record({
  emit(event) {},
  recordCanvas: true,
  sampling: {
    canvas: 15,
  },
  // optional image format settings
  dataURLOptions: {
    type: 'image/webp',
    quality: 0.6,
  },
});

Enable replaying Canvas

import { Replayer } from '@rrweb/replay';

const replayer = new Replayer(events, {
  UNSAFE_replayCanvas: true,
});
replayer.play();

Enable replaying Canvas will remove the sandbox, which may cause a potential security issue.

Alternatively you can stream canvas elements via webrtc with the rrweb-plugin-canvas-webrtc-record & rrweb-plugin-canvas-webrtc-replay plugins. For more information see canvas-webrtc documentation