The Browser Agent, sometimes called the JS Agent, has multiple variants: Lite, Pro, Pro+SPA. Unless noted otherwise, all features/improvements/bug fixes are available in all variants of the agent.
- Adjusted PageAction limits: Previously, we limited PageAction events to 120 per page load and only 20 events per harvest cycle, resulting in dropped data if a user sent more than 20 pageAction events in a single burst. Increasing the harvest time to 30 seconds also increases the event buffer, allowing users to send up to 60 events per harvest.
- Improved time measurement: Previously, the agent used the system clock to calculate timing, and since the system clock may shift over the lifecycle of a page, the agent could occasionally report inaccurate or unexpectedly negative values. Going forward, the agent will use
perfomance.now(), which is a monotonically increasing clock that starts from
navigationStart. This change will result in more accurate timing for modern browsers.
- Preserve event listeners: Previously, if the agent doesn't load correctly it affected the functionality of
removeEventListener. These will now function the same whether the agent loads or not.
How to upgrade
To upgrade your agent to the latest version, see Upgrade Browser agent.