Service Workers for PWA caching, proxy and offline

Name		Name	Last commit message	Last commit date
Latest commit History 30 Commits
.github		.github
JavaScript		JavaScript
.editorconfig		.editorconfig
.eslintignore		.eslintignore
.eslintrc.json		.eslintrc.json
.gitignore		.gitignore
LICENSE		LICENSE
README.md		README.md

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