a6893f73ab
Fix for #1575 where postcss was raising an exception * adapt the entire CSS as a whole in one pass with postcss, rather than adapting each split part separately * break up the postcss output again and assign to individual text nodes (kind of inverse of splitCssText at record side) * impose an upper bound of 30 iterations on the substring searches to preempt possible pathological behavior * add tests to demonstrate the scenario and prevent regression More technical details: * Fix algorithm; checks against `ix_end` within loop were incorrect when `ix_start` was bigger than zero. * Fix that length check against wrong array was causing 'should record style mutations with multiple child nodes and replay them correctly' test to fail. Note on last point: I haven't looked into things more deeply than that the test was complaining about missing .length after `replayer.pause(1000);`
rrweb
The rrweb documentary (in Chinese, with English subtitles)
I have joined Github Sponsors and highly appreciate your sponsorship.
rrweb refers to 'record and replay the web', which is a tool for recording and replaying users' interactions on the web.
Guide
📚 Read the rrweb guide here. 📚
📺 Presentation: Hacking the browser to digital twin your users 📺
Project Structure
rrweb is mainly composed of 3 parts:
- rrweb-snapshot, including both snapshot and rebuilding features. The snapshot is used to convert the DOM and its state into a serializable data structure with a unique identifier; the rebuilding feature is to rebuild the snapshot into corresponding DOM.
- rrweb, including two functions, record and replay. The record function is used to record all the mutations in the DOM; the replay is to replay the recorded mutations one by one according to the corresponding timestamp.
- rrweb-player, is a player UI for rrweb, providing GUI-based functions like pause, fast-forward, drag and drop to play at any time.
Roadmap
- storage engine: do deduplication on a large number of rrweb sessions
- compact mutation data in common patterns
- provide plugins via the new plugin API, including:
- XHR plugin
- fetch plugin
- GraphQL plugin
- ...
Internal Design
Contribute Guide
Since we want the record and replay sides to share a strongly typed data structure, rrweb is developed with typescript which provides stronger type support.
- Fork this repository.
- Run
yarn installin the root to install required dependencies for all sub-packages (note:npm installis not recommended). - Run
yarn build:allto build all packages and get a stable base, thenyarn devin the root to get auto-building for all the sub-packages whenever you modify anything. - Navigate to one of the sub-packages (in the
packagesfolder) where you'd like to make a change. - Patch the code and run
yarn testto run the tests, make sure they pass before you commit anything. Add test cases in order to avoid future regression. - If tests are failing, but the change in output is desirable, run
yarn test:updateand carefully commit the changes in test output. - Push the code and create a pull request.
Protip: You can run yarn test in the root folder to run all the tests.
In addition to adding integration tests and unit tests, rrweb also provides a REPL testing tool.
Sponsors
Become a sponsor and get your logo on our README on Github with a link to your site.
Gold Sponsors 🥇
Silver Sponsors 🥈
Bronze Sponsors 🥉
Backers
Core Team Members
Yuyz0112 |
Yun Feng |
eoghanmurray |
Juice10 open for rrweb consulting |
Who's using rrweb?
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