make-fetch

Implement your own `fetch()` with node.js streams

v3.1.2 URL: https://unpkg.com/make-fetch@3.1.2/index.js

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fetch custom request fake

happy-dom

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

v18.0.1 URL: https://unpkg.com/happy-dom@18.0.1/lib/index.js

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jsdom dom browser custom elements web components html whatwg w3c

error-ex

Easy error subclassing and stack customization

v1.3.2 URL: https://unpkg.com/error-ex@1.3.2/index.js

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error errors extend extending extension subclass stack custom

make-error

Make your own error types!

v1.3.6 URL: https://unpkg.com/make-error@1.3.6/index.js

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create custom derive error errors extend extending extension factory inherit make subclass

verror

richer JavaScript errors

v1.10.1 URL: https://unpkg.com/verror@1.10.1/lib/verror.js

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error errors err exception exceptions custom