dev server not hot reloading static file changes

[seanwuapps]

🐛 Bug Report

Prerequisites

• I'm using the latest version of Docusaurus.
• I have tried the npm run clear or yarn clear command.
• I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
• I have tried creating a repro with https://new.docusaurus.io
• I have read the console error message carefully (if applicable)

Description

dev server's HMR doesn't seem to pick up file changes inside the static folder

Have you read the Contributing Guidelines on issues?

yes

Steps to reproduce

While the dev server is running

1. replace logo.svg or change its content
2. notice the browser does not reflect change without a manual refresh.

Expected behavior

The browser automatically reflects static asset change.

Actual behavior

The browser does not auto reflect the change, have to do a manual page refresh.

Your environment

• Public source code: https://stackblitz.com/edit/github-y6dgvo?file=static/img/logo.svg
• Public site URL: https://github-y6dgvo.stackblitz.io
• Docusaurus version used: 2.0.0-beta.6
• Environment name and version: Chrome 93.0.4577.82, Node.js 14.15.0
• Operating system and version (e.g. Ubuntu 20.04.2 LTS): Windows 10

Reproducible demo

https://stackblitz.com/edit/github-y6dgvo?file=static/img/logo.svg

[slorber]

Thanks, we'll handle this after the upgrade of #5420

We currently use an express middleware for the static folder which should probably removed

[lex111]

Fixed in #5420, will be available in next release.