Configure Monitoring for Javascript

Steps on how to configure monitoring for Javascript.

Standard JavaScript Monitoring Enabling

Details on how to enable Javascript monitoring.

Deep JavaScript Monitoring Enabling

Chrome Extension (No banner)

This option avoids the Debugging banner from appearing on the end-user’s browser while JavaScript Execution Time/profiling is being collected in the background. Have the End-Users launch Chrome with an additional flag

Go to Germain Workspace > Left Menu > Analytics > UX Monitoring Profiles
Select UX Monitoring Profile to update
Select JavaScript Profiling Monitoring in the Configuration Editor
Locate the shortcut file used to launch Chrome: search for the shortcut in the Start Menu, right-click the shortcut, choose "Open file location"
Edit the properties of the Chrome shortcut file: right click, properties
Add --silent-debugger-extension-api to the end of the target value, leaving a space between
Ensure that this modified shortcut is what is used when running Chrome to open the web page being monitored

Chrome Extension (Banner on end-user browser)

Go to Germain Workspace > Left Menu > Analytics > UX Monitoring Profiles
Select UX Monitoring Profile to update
Select JavaScript Profiling Monitoring in the Configuration Editor

As a security feature, Chrome will display a banner along the top of the browser window when a monitored page is open. It looks like the following:

If the user clicks either the Cancel or X buttons, the JS profiler details will cease to be collected until the page is opened in a new tab and the banner re-appears.

Custom Response Header

Go to Germain Workspace > Left Menu > Analytics > UX Monitoring Profiles
Select UX Monitoring Profile to update
Select JavaScript Profiling Monitoring in the Configuration Editor
Add Document-Policy: js-profiling response header to each page for which you want to collect JavaScript Time Execution / Profiling details

Deep JavaScript Monitoring Disabling

Go to Germain Workspace > Left Menu > Analytics > UX Monitoring Profiles
Select UX Monitoring Profile to update
Unselect JavaScript Profiling Monitoring in the Configuration Editor

Advanced Configuration

All the settings available on the settings.plugins.jsProfiling object are listed below. Please contact us If you need any help with this advanced configuration.

TYPESCRIPT

/** Minimum function/stack hits to end up in the result output. Default: 0. */
functionMinStackHits: number;
/** Maximum sample capacity for JavaScript Self-Profiling API only (in samples). Default: 1000. */
maxSampleBufferSize: number;
/** Maximum profiling duration (in seconds). Default: 30. */
maxProfileDuration: number;
/** Start profiler on first page ready event if true. Otherwise it will start from the next page load. Default: true. */
profileOnPageReady: boolean;
/** Target sample interval (in millis per sample). Default: 20. */
sampleIntervalMillis: Millis;
/** Check for JavaScript Self-Profiling API and before checking for JS Profiler extension. This avoids "Document policy violation: js-profiling is not allowed in this document." error message if API not allowed but we check for it. Default: false. */
useSelfProfilingAPI: boolean;
/** Run profiler for all except these usernames. Undefined or empty array means run for everyone. Default: undefined. */
excludedUsernames?: string[];
/** Run profiler only for these usernames. Undefined or empty array means run for everyone. Default: undefined. */
includedUsernames?: string[];

For more detailed information, please reach out to us. We will provide you with further guidance and assistance tailored to your needs.

Component: RUM JS, JS Profiler

Feature Availability: 2022.2 or later