Beginning in February 2020, AppDynamics switched from Semantic Versioning to Calendar Versioning for some agents and the first deployments of SaaS Controllers. In March 2020, the entire product suite will use Calendar Versioning.

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If any script on your monitored web pages, including library code, sets the JavaScript window.onerror event, add the following method to the page immediately after setting window.onerror:


The JavaScript Agent (adrum.js) sets window.onerror to listen for uncaught JavaScript errors. If this listener is overwritten, errors are not reported.

The agent invokes your original onerror handler.