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A comment on An easier way of using polyfills. Parent comment

Re:An easier way of using polyfills by chadscira on Thursday November 06, 2014 @02:43PM (#8569257)
Yes but the way mozilla has chosen to implement this is to send the code over the wire based on the clients UA. So if a method doesn't exist that should exist the client will never receive it.

It would be cool if they allowed you to disable this feature, and just use feature detection and always load the code for the requested item.

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Re:An easier way of using polyfills by triblondon on Friday November 07, 2014 @07:32PM (#8575452)
The polyfill service was created and is hosted by the Financial Times. Mozilla is not affiliated.

There are good reasons why you cannot make a good choice of polyfill prior to knowing the browser family and version, primarily due to polyfill variants (more details in the Hacks post).

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