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Link rel=modulepreload

Category

Performance

Type

New or changed feature

Status

Enabled by default (Chrome 66)

Intent stage

None

Summary

The new "modulepreload" rel value in <link> element and Link: header provides a way to initiate early (and high-priority) loading of module scripts.

Standards & signals

• Specification: https://html.spec.whatwg.org/multipage/links.html#link-type-modulepreload
• Firefox: No signal
• Safari: No signal
• Web developers: Mixed signals
• Tracking bug: http://crbug.com/740886

Docs: https://docs.google.com/document/d/1WebH4IOCswACUbaczx5cGQPVl5mnqcieOd4MRJM2syk/edit?usp=sharing

Samples: https://irori.github.io/modulepreload-demo/

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