@bugsnag/browser-performance

Performance monitoring for browsers

Monitor the page load speed, capture WebVitals and take other measurements in your web app and see the results in your BugSnag dashboard.

Features

• Reporting of page loads with WebVital metrics
• Automatic measurement of fetch and XHR request times
• Start and end your own spans to record custom parts of your code

Getting started

This functionality is currently in its preview phase – please contact us for more information.

For integration instructions, see our online docs: docs.bugsnag.com/performance/browser-js

Pre-releases

We are currently publishing pre-1.0 releases. These releases may contain breaking changes, which are documented in the CHANGELOG.md.

Support

• Read the integration guide
• Search open and closed issues for similar problems
• Report a bug or request a feature

License

The BugSnag JavaScript Performance SDK is free software released under the MIT License. See the LICENSE for details.

Changelog

v0.1.1 (2023-06-28)

Added

• (core) Allow spans to be nested and introduce the notion of a context stack & current span context #198 #206 #209 #210
• (core) Add makeCurrentContext span option #211
• (core) Add parentContext span option #214
• (core) Add device.id as a resource attribute #217
• (core) Add generateAnonymousId config option #217
• (core) Add isFirstClass span option #218
• (core) Log a warning when trying to end a Span multiple times #200
• (core) Add 'Bugsnag-Sent-At' header to trace payloads #220
• (browser) Add PageLoadPhase sub-spans for full page loads #212 #224
• (browser) Add ResourceLoad instrumentation #225
• (browser) Set title and url attributes for page load and route change spans when settling #240

Removed

• (core) Breaking change: The samplingProbability configuration option has been removed. A default probability of 1.0 is used until a probability value is received from the server #219