Run python3 test/host-header-smoke.py <built-image> from the repository root. The backend CI build runs this check against the image it builds. It creates a disposable NPM container and renders a proxy host through the backend's normal configuration generator, including a custom location. A synthetic HTTPS upstream checks that the forwarded Host matches Origin and Referer, and echoes the request method, path and body. Coverage includes HTTP and HTTPS, explicit default and nonstandard ports, mixed-case names, IPv6 authorities, and HTTP/1.0 without Host. All test traffic and published Docker ports use loopback; the container and its anonymous volumes are removed on completion.

Running Locally

cd nginxproxymanager/test
yarn install
yarn run cypress

VS Code

Editor settings are not committed to the repository, typically because each developer has their own settings. Below is a list of common setting that may help, so feel free to try them or ignore them, you are a strong independent developer. You can add settings to either "user" or "workspace" but we recommend using "workspace" as each project is different.

ESLint

The ESLint extension only works on JavaScript files by default, so add the following to your workspace settings and reload VSCode.

"eslint.autoFixOnSave": true,
"eslint.validate": [
	{ "language": "javascript", "autoFix": true },
	"html"
]

NOTE: If you've also set the editor.formatOnSave option to true in your settings.json, you'll need to add the following config to prevent running 2 formatting commands on save for JavaScript and TypeScript files:

"editor.formatOnSave": true,
"[javascript]": {
	"editor.formatOnSave": false,
},
"[javascriptreact]": {
	"editor.formatOnSave": false,
},
"[typescript]": {
	"editor.formatOnSave": false,
},
"[typescriptreact]": {
	"editor.formatOnSave": false,
},