v2.5.1

• @splunk/otel-web

  • Trace separation of XHR and Fetch from parent trace #1693
    • New separateTraces configuration option that gives XHR and Fetch requests their own trace IDs instead of inheriting the parent click event's trace ID
    • Preserves the relationship through parent.traceId and parent.spanId attributes, enabling proper Business Transaction correlation in backend APM while maintaining RUM trace correlation
    • Supports top-level config, per-instrumentation config, and mixed configurations with overrides
  • Add user_agent.is_bot and user_agent.is_automated attributes #1760
    • New global span attribute user_agent.is_bot that uses regex detection to flag bot/crawler user agents
    • New global span attribute user_agent.is_automated that checks navigator.webdriver to identify browsers controlled by automation frameworks like Selenium, Puppeteer, and Playwright
    • Enables downstream filtering and analysis of synthetic versus real user traffic
  • Add splunk.rum.is_latest_tag attribute #1762
    • Adds a global span attribute splunk.rum.is_latest_tag: true when the agent loads via the "latest" CDN tag
    • Updates deprecation warnings to clarify that the "latest" tag remains pinned to v2.5.x
  • Improve dead click detection for role=button and anchor elements #1756
    • Elements with role="button" are now treated as interactive components for dead click detection
    • Excludes <a> elements with actual href attributes from detection since they trigger navigation
    • Keeps anchors without href or with javascript: hrefs as candidates for detection
  • Upgrade upstream to v2.11.1 #1758

• Updated dependencies #1759, #1761

⚠️ Upcoming breaking changes in v3.0.0

Action required before upgrading to v3.0.0:

• Domain migration: All domains are changing from signalfx.com to observability.splunkcloud.com. This includes both the CDN (cdn.signalfx.com → cdn.observability.splunkcloud.com) and the ingest endpoint (rum-ingest.{realm}.signalfx.com → rum-ingest.{realm}.observability.splunkcloud.com). If your application uses a Content Security Policy (CSP), update your script-src and connect-src directives to allow the new domains before upgrading.
• latest CDN tag discontinued: The latest CDN tag will stop being updated after v2.5.0. Users relying on the latest tag should migrate to a versioned URL:

- <script src="https://cdn.signalfx.com/o11y-gdi-rum/latest/splunk-otel-web.js"></script>
+ <script src="https://cdn.observability.splunkcloud.com/o11y-gdi-rum/v3/splunk-otel-web.js"></script>

The following experimental config options will be removed in v3.0.0 and their behavior will be enabled by default. This may affect how sessions and data are counted:

• _experimental_adjustSessionStartToTimeOrigin: Session start time will be automatically backdated to performance.timeOrigin.
• _experimental_discardDataAfterInactivity: Will be enabled by default. Data will be automatically discarded after 15 minutes of user inactivity. Set _experimental_discardDataAfterInactivity: false to opt out.
• OTLP exporter enabled by default: The OTLP exporter will replace Zipkin as the default export format. Set exporter.otlp: false to opt out.
• spaMetrics: Will be enabled by default. Set spaMetrics: false to opt out.
• experimental_alignWebVitalsSpansWithDocumentLoad: All web vitals spans (LCP, CLS, INP) will be automatically anchored to the document load span — start time will match the documentLoad span timestamp rather than the time the metric was reported, and location.href will reflect the original page load URL rather than the current URL after SPA navigation.

CDN

Version v2.5.1

background-service.html:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2.5.1/background-service.html" integrity="sha384-0Plr22r4EPSZZYnvJBmBA9/uIjDusocispOGmWMnGxdiNRjuvgVHfOKsCCI90L1s" crossorigin="anonymous"></script>
splunk-otel-web-session-recorder.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2.5.1/splunk-otel-web-session-recorder.js" integrity="sha384-UWsDRzXj6PwL9CrVe513I+khoJMsgS1MSp08bj8q8Xv0pYEMWDF3y3VVZ163Tf7m" crossorigin="anonymous"></script>
splunk-otel-web.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2.5.1/splunk-otel-web.js" integrity="sha384-/IPW28xWyyOQ+DNW9SStfdmEJIhHAPyZyuWgG/6K7fkiLK0g+dg4R7DagbqzpRXv" crossorigin="anonymous"></script>

Version v2.5

WARNING: Content behind this URL might be updated when we release a new version.
For this reason we do not provide integrity attribute.

background-service.html:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2.5/background-service.html" crossorigin="anonymous"></script>
splunk-otel-web-session-recorder.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2.5/splunk-otel-web-session-recorder.js" crossorigin="anonymous"></script>
splunk-otel-web.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2.5/splunk-otel-web.js" crossorigin="anonymous"></script>

Version v2

WARNING: Content behind this URL might be updated when we release a new version.
For this reason we do not provide integrity attribute.

background-service.html:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2/background-service.html" crossorigin="anonymous"></script>
splunk-otel-web-session-recorder.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2/splunk-otel-web-session-recorder.js" crossorigin="anonymous"></script>
splunk-otel-web.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/v2/splunk-otel-web.js" crossorigin="anonymous"></script>

Version latest

WARNING: Content behind this URL might be updated when we release a new version.
For this reason we do not provide integrity attribute.

background-service.html:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/latest/background-service.html" crossorigin="anonymous"></script>
splunk-otel-web-session-recorder.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/latest/splunk-otel-web-session-recorder.js" crossorigin="anonymous"></script>
splunk-otel-web.js:
<script src="https://cdn.signalfx.com/o11y-gdi-rum/latest/splunk-otel-web.js" crossorigin="anonymous"></script>