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Browser agent v1.231.0

April 28, 2023


Omit CLS scores before web-vitals report them

Initial snapshots of CLS reported as 0s attached to timing metrics will be omitted, so as to "de-noise" the aggregate CLS dataset. This also temporarily addresses an edge case of long loading pages potentially sending a "final" CLS value of 0, inaccurately. The case of a final 0 CLS when a user only navigates away from the page has also been fixed.

Fix accepted argument type for all and race methods of Promise

The wrapped Promise's static all and race methods now work with iterators per native implementation, rather than only arrays.

Upgrade Navigation Timing API in PageView (RUM) call

The performance entry data sent for PageView now uses the Navigation Timing Level 2 API over the deprecated Level 1 API.

Fix typo in top-level API causing exception

An an uncaught reference exception was occurring on pages with more than one initialized agent due to a typo in the name of a variable (returnsVals).

Add null entry checks to certain web-vitals handlers

For LCP and FID, we will exclude the performance entry info when there are no entries given by web-vitals. This had thrown exceptions.

Remove previously added console logging measurements

This reverses performance impacts and exceptions introduced in the prior release by serializing console API arguments.

Rectify version reported by NPM agent implementations

Agents installed via the NPM method will report the correct semantic version in data harvests.

Fix exception when importing NPM package source code

An error was occurring related to a missing environment variable when importing from the NPM package source directly (versus via the CJS/ESM packages).

Support statement:

New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Older releases will no longer be supported when they reach end-of-life. Release dates are reflective of the original publish date of the agent version.

New Browser Agent releases are rolled out to customers in small stages over a period of time. Because of this, the date the release becomes accessible to your account may not match the original publish date. Please see this status dashboard for more information.

Consistent with our browser support policy, version v1.231.0 of the Browser agent was built for and tested against these browsers and version ranges: Chrome 103-112, Edge 103-112, Safari 15-16, Firefox 103-112; and for mobile devices, Android Chrome 100 and iOS Safari 15-15.5.

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