ReferenceError Can't find variable: PerformanceEntry error on MacOS Safari and Mobile Safari

[davidbrusius]

Hi,

We are experiencing a few exceptions when running the most recent version of the Datadog RUM SDK and it looks like a compatibility issue with older Safari versions when trying to use the PerformanceEntry API.

Versions affected in our end:

MacOS Safari - 10.1.2
Mobile Safari - 10.0.0

Here is the stacktrace:

ReferenceError Can't find variable: PerformanceEntry 
    https://www.datadoghq-browser-agent.com/datadog-rum.js:1:48530 
    https://www.datadoghq-browser-agent.com/datadog-rum.js:1:48630 
    [native code] forEach
    https://www.datadoghq-browser-agent.com/datadog-rum.js:1:22279 notify
    https://www.datadoghq-browser-agent.com/datadog-rum.js:1:38890 
    [native code] forEach
    https://www.datadoghq-browser-agent.com/datadog-rum.js:1:35971 
    https://www.datadoghq-browser-agent.com/datadog-rum.js:1:1188 
    https://www.datadoghq-browser-agent.com/datadog-rum.js:1:36102 n
    node_modules/core-js/modules/es.promise.js:114:29 
    node_modules/core-js/internals/microtask.js:27:8 flush

Should that versions be supported by the SDK? If so, could you help providing a fix?

Thanks

[bcaudan]

Hi @davidbrusius,

Thanks for the report, we'll look into it shortly.

[BenoitZugmeyer]

Hello @davidbrusius, a fix has been released as part of v2.14.0. Let us know if you still encounter this issue!

[davidbrusius]

Thanks @bcaudan and @BenoitZugmeyer! The error is no longer happening on my side.