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XHR (Ajax) auto-instrumentation never attaches to XMLHttpRequest.prototype in Vite/Rollup production build (fetch instrumentation works fine)

Status: Open.

#2750 In microsoft/ApplicationInsights-JS;

· Andrea Ceroni (andrekiba) opened on Aug 3, 2026

Otel Multitenant feature

Status: Open.

#2702 In microsoft/ApplicationInsights-JS;

· aimbrenda opened on Feb 16, 2026

[BUG] TypeError: Cannot redefine property: name when using esbuild with keepNames: true, preventing VSCode extension telemetry from being sent

Status: Open.

#2694 In microsoft/ApplicationInsights-JS;

· Brandon Waterloo [MSFT] (bwateratmsft) opened on Jan 30, 2026

Notice: HTTPS CDN Enforcement is now enabled

cdn issue

Status: Open.

Task

#2689 In microsoft/ApplicationInsights-JS;

· Nev (MSNev) opened on Jan 14, 2026

trackDependencyData id format validation breaks W3C correlation with plain spanId

Status: Open.

#2686 In microsoft/ApplicationInsights-JS;

· Szél Péter (szelpe) opened on Jan 7, 2026

[BUG] npm package "applicationinsights-web-snippet" does not exist under owner "microsoft"

Status: Open.

#2685 In microsoft/ApplicationInsights-JS;

· Ahmed Salijee (ahmedsza) opened on Dec 24, 2025

[BUG] Non-serializable values polluting React Router navigation state

stale

Status: Open.

#2682 In microsoft/ApplicationInsights-JS;

· mmeluch opened on Dec 10, 2025

[BUG] Example configuration in Offline channel docs result in no messages being stored

documentation

Status: Open.

#2673 In microsoft/ApplicationInsights-JS;

· Philip Peitsch (peitschie) opened on Nov 24, 2025

[BUG] Offline Channel silently discards all messages received prior to configuration

documentation

Status: Open.

#2672 In microsoft/ApplicationInsights-JS;

· Philip Peitsch (peitschie) opened on Nov 24, 2025

[Feature] Ability to Identify Telemetry Items by Micro Frontend Source

Status: Open.

#2648 In microsoft/ApplicationInsights-JS;

· bhaskarmac (bhaskarmac) opened on Sep 19, 2025

[BUG] Unable to use telemetry initializer to filter calls to retrieve config from js.monitor.azure.com

bug

Status: Open.

#2480 In microsoft/ApplicationInsights-JS;

· Tim Tucker (timtucker-dte) opened on Feb 11, 2025

URGENT ACTION: Stop using az416426.vo.msecnd.net

cdn issue

keepDo not Mark as Stale and closeDo not Mark as Stale and close

mitigated

p1

Status: Open.

Task

#2457 In microsoft/ApplicationInsights-JS;

· Nev (MSNev) opened on Dec 12, 2024