Redirect requests of current origin to another domain with Service Worker.

Last update: Aug 28, 2022

Overview

Service Worker to Redirect Origin

This is a tool for your static website which could intercept all GET requests of the origin domain and redirect them to a given base-URL. Such as /index.html to https://cdn.example.com/index.html.

It's useful when your origin domain have no ICP license but you want to optimize mainland China routing.

Usage

GitHub Action

- name: Inject Service Worker
  uses: Menci/service-worker-redirect-origin@beta-v1
  with:
    # The directory containing your built static website files.
    www-root: public

    # The target base-URL to redirect to.
    target-base-url: https://cdn.example.com/ # Remember to end with a "/"

    # If https://cdn.example.com/<requested url> responds with 404, it's will be fetched.
    # Omit to fallback to origin.
    http-404-page: 404.html
    
    # The script filename of service worker. Will be written to the `www-root` directory.
    # By default `sw.js`.
    service-worker-filename: sw.js

Node.js

$ yarn inject <wwwRoot> <targetBaseUrl> [404Page] [serviceWorkerFilename]

See the explanation for each arguments above in GitHub Action usage.

Limitations

It will replace your existing Service Worker in your site (if any).

Comments

Perf: Proimse.any + AbortController
Prefer Promise.any instead of home-baked promise race implementation.

Provide a light-weight Promise.any polyfill with ES2019 support

Use AbortController to abort a fired request, to potentially save bandwidth of the server
opened by SukkaW 11
custom header options needed

Using npm(even cdnjs!) as a cdn for your static web pages is a good option.My blog mentions this and uses this work too:

https://blog.cyfan.top/p/d3c51290.html#%E5%85%A8%E7%AB%99NPM%E9%9D%99%E6%80%81%E5%8C%96

But in most of the headers returned by cdn, the html file's content-type is text/plain(like jsDelivr,if you don't change it to text/html,you will recieve a plain text webpage),because they don't want you to distribute it as a web page.But ServiceWorker can solve it.

You can open my blog in mainland China, my blog uses the sw written by myself to realize the distribution of the whole site to the npm mirror(most hit at eleme)

opened by ChenYFan 32

Releases(beta-v3)

beta-v3(Jun 30, 2022)

If you have any problem using this action, please feel free to open a issue! Thanks.
Source code(tar.gz)
Source code(zip)
beta-v2(Jan 30, 2022)

If you have any problem using this action, please feel free to open a issue! Thanks.
Source code(tar.gz)
Source code(zip)
beta-v1(Jan 7, 2022)

If you have any problem using this action, please feel free to open a issue! Thanks.
Source code(tar.gz)
Source code(zip)

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