Fix errors when importing the library in node

GoogleChrome / web-vitals

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https://web.dev/vitals

Apache License 2.0

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Closed tunetheweb closed 6 months ago

tunetheweb commented 6 months ago

Unit tests in v4 are broken since merging #442 as it exports a function using self which doesn't exist in node contexts.

philipwalton commented 6 months ago

Gah, can't believe I didn't notice the failing unit tests. This could also impact anyone running the code in node SSR, so we should fix ASAP.