Index: frontend/node_modules/http-proxy-middleware/README.md
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+# http-proxy-middleware
+
+[![GitHub Workflow Status (branch)](https://img.shields.io/github/workflow/status/chimurai/http-proxy-middleware/CI/master?style=flat-square)](https://github.com/chimurai/http-proxy-middleware/actions?query=branch%3Amaster)
+[![Coveralls](https://img.shields.io/coveralls/chimurai/http-proxy-middleware.svg?style=flat-square)](https://coveralls.io/r/chimurai/http-proxy-middleware)
+[![dependency Status](https://snyk.io/test/npm/http-proxy-middleware/badge.svg?style=flat-square)](https://snyk.io/test/npm/http-proxy-middleware)
+[![npm](https://img.shields.io/npm/v/http-proxy-middleware?color=%23CC3534&style=flat-square)](https://www.npmjs.com/package/http-proxy-middleware)
+
+Node.js proxying made simple. Configure proxy middleware with ease for [connect](https://github.com/senchalabs/connect), [express](https://github.com/strongloop/express), [browser-sync](https://github.com/BrowserSync/browser-sync) and [many more](#compatible-servers).
+
+Powered by the popular Nodejitsu [`http-proxy`](https://github.com/nodejitsu/node-http-proxy). [![GitHub stars](https://img.shields.io/github/stars/nodejitsu/node-http-proxy.svg?style=social&label=Star)](https://github.com/nodejitsu/node-http-proxy)
+
+## ⚠️ Note <!-- omit in toc -->
+
+This page is showing documentation for version v2.x.x ([release notes](https://github.com/chimurai/http-proxy-middleware/releases))
+
+If you're looking for v0.x documentation. Go to:
+https://github.com/chimurai/http-proxy-middleware/tree/v0.21.0#readme
+
+## TL;DR <!-- omit in toc -->
+
+Proxy `/api` requests to `http://www.example.org`
+
+```javascript
+// javascript
+
+const express = require('express');
+const { createProxyMiddleware } = require('http-proxy-middleware');
+
+const app = express();
+
+app.use('/api', createProxyMiddleware({ target: 'http://www.example.org', changeOrigin: true }));
+app.listen(3000);
+
+// http://localhost:3000/api/foo/bar -> http://www.example.org/api/foo/bar
+```
+
+```typescript
+// typescript
+
+import * as express from 'express';
+import { createProxyMiddleware, Filter, Options, RequestHandler } from 'http-proxy-middleware';
+
+const app = express();
+
+app.use('/api', createProxyMiddleware({ target: 'http://www.example.org', changeOrigin: true }));
+app.listen(3000);
+
+// http://localhost:3000/api/foo/bar -> http://www.example.org/api/foo/bar
+```
+
+_All_ `http-proxy` [options](https://github.com/nodejitsu/node-http-proxy#options) can be used, along with some extra `http-proxy-middleware` [options](#options).
+
+:bulb: **Tip:** Set the option `changeOrigin` to `true` for [name-based virtual hosted sites](http://en.wikipedia.org/wiki/Virtual_hosting#Name-based).
+
+## Table of Contents <!-- omit in toc -->
+
+- [Install](#install)
+- [Core concept](#core-concept)
+- [Example](#example)
+- [Context matching](#context-matching)
+- [Options](#options)
+  - [http-proxy-middleware options](#http-proxy-middleware-options)
+  - [http-proxy events](#http-proxy-events)
+  - [http-proxy options](#http-proxy-options)
+- [Shorthand](#shorthand)
+  - [app.use(path, proxy)](#appusepath-proxy)
+- [WebSocket](#websocket)
+  - [External WebSocket upgrade](#external-websocket-upgrade)
+- [Intercept and manipulate requests](#intercept-and-manipulate-requests)
+- [Intercept and manipulate responses](#intercept-and-manipulate-responses)
+- [Working examples](#working-examples)
+- [Recipes](#recipes)
+- [Compatible servers](#compatible-servers)
+- [Tests](#tests)
+- [Changelog](#changelog)
+- [License](#license)
+
+## Install
+
+```bash
+$ npm install --save-dev http-proxy-middleware
+```
+
+## Core concept
+
+Proxy middleware configuration.
+
+#### createProxyMiddleware([context,] config)
+
+```javascript
+const { createProxyMiddleware } = require('http-proxy-middleware');
+
+const apiProxy = createProxyMiddleware('/api', { target: 'http://www.example.org' });
+//                                    \____/   \_____________________________/
+//                                      |                    |
+//                                    context             options
+
+// 'apiProxy' is now ready to be used as middleware in a server.
+```
+
+- **context**: Determine which requests should be proxied to the target host.
+  (more on [context matching](#context-matching))
+- **options.target**: target host to proxy to. _(protocol + host)_
+
+(full list of [`http-proxy-middleware` configuration options](#options))
+
+#### createProxyMiddleware(uri [, config])
+
+```javascript
+// shorthand syntax for the example above:
+const apiProxy = createProxyMiddleware('http://www.example.org/api');
+```
+
+More about the [shorthand configuration](#shorthand).
+
+## Example
+
+An example with `express` server.
+
+```javascript
+// include dependencies
+const express = require('express');
+const { createProxyMiddleware } = require('http-proxy-middleware');
+
+// proxy middleware options
+/** @type {import('http-proxy-middleware/dist/types').Options} */
+const options = {
+  target: 'http://www.example.org', // target host
+  changeOrigin: true, // needed for virtual hosted sites
+  ws: true, // proxy websockets
+  pathRewrite: {
+    '^/api/old-path': '/api/new-path', // rewrite path
+    '^/api/remove/path': '/path', // remove base path
+  },
+  router: {
+    // when request.headers.host == 'dev.localhost:3000',
+    // override target 'http://www.example.org' to 'http://localhost:8000'
+    'dev.localhost:3000': 'http://localhost:8000',
+  },
+};
+
+// create the proxy (without context)
+const exampleProxy = createProxyMiddleware(options);
+
+// mount `exampleProxy` in web server
+const app = express();
+app.use('/api', exampleProxy);
+app.listen(3000);
+```
+
+## Context matching
+
+Providing an alternative way to decide which requests should be proxied; In case you are not able to use the server's [`path` parameter](http://expressjs.com/en/4x/api.html#app.use) to mount the proxy or when you need more flexibility.
+
+[RFC 3986 `path`](https://tools.ietf.org/html/rfc3986#section-3.3) is used for context matching.
+
+```ascii
+         foo://example.com:8042/over/there?name=ferret#nose
+         \_/   \______________/\_________/ \_________/ \__/
+          |           |            |            |        |
+       scheme     authority       path        query   fragment
+```
+
+- **path matching**
+
+  - `createProxyMiddleware({...})` - matches any path, all requests will be proxied.
+  - `createProxyMiddleware('/', {...})` - matches any path, all requests will be proxied.
+  - `createProxyMiddleware('/api', {...})` - matches paths starting with `/api`
+
+- **multiple path matching**
+
+  - `createProxyMiddleware(['/api', '/ajax', '/someotherpath'], {...})`
+
+- **wildcard path matching**
+
+  For fine-grained control you can use wildcard matching. Glob pattern matching is done by _micromatch_. Visit [micromatch](https://www.npmjs.com/package/micromatch) or [glob](https://www.npmjs.com/package/glob) for more globbing examples.
+
+  - `createProxyMiddleware('**', {...})` matches any path, all requests will be proxied.
+  - `createProxyMiddleware('**/*.html', {...})` matches any path which ends with `.html`
+  - `createProxyMiddleware('/*.html', {...})` matches paths directly under path-absolute
+  - `createProxyMiddleware('/api/**/*.html', {...})` matches requests ending with `.html` in the path of `/api`
+  - `createProxyMiddleware(['/api/**', '/ajax/**'], {...})` combine multiple patterns
+  - `createProxyMiddleware(['/api/**', '!**/bad.json'], {...})` exclusion
+
+  **Note**: In multiple path matching, you cannot use string paths and wildcard paths together.
+
+- **custom matching**
+
+  For full control you can provide a custom function to determine which requests should be proxied or not.
+
+  ```javascript
+  /**
+   * @return {Boolean}
+   */
+  const filter = function (pathname, req) {
+    return pathname.match('^/api') && req.method === 'GET';
+  };
+
+  const apiProxy = createProxyMiddleware(filter, {
+    target: 'http://www.example.org',
+  });
+  ```
+
+## Options
+
+### http-proxy-middleware options
+
+- **option.pathRewrite**: object/function, rewrite target's url path. Object-keys will be used as _RegExp_ to match paths.
+
+  ```javascript
+  // rewrite path
+  pathRewrite: {'^/old/api' : '/new/api'}
+
+  // remove path
+  pathRewrite: {'^/remove/api' : ''}
+
+  // add base path
+  pathRewrite: {'^/' : '/basepath/'}
+
+  // custom rewriting
+  pathRewrite: function (path, req) { return path.replace('/api', '/base/api') }
+
+  // custom rewriting, returning Promise
+  pathRewrite: async function (path, req) {
+    const should_add_something = await httpRequestToDecideSomething(path);
+    if (should_add_something) path += "something";
+    return path;
+  }
+  ```
+
+- **option.router**: object/function, re-target `option.target` for specific requests.
+
+  ```javascript
+  // Use `host` and/or `path` to match requests. First match will be used.
+  // The order of the configuration matters.
+  router: {
+      'integration.localhost:3000' : 'http://localhost:8001',  // host only
+      'staging.localhost:3000'     : 'http://localhost:8002',  // host only
+      'localhost:3000/api'         : 'http://localhost:8003',  // host + path
+      '/rest'                      : 'http://localhost:8004'   // path only
+  }
+
+  // Custom router function (string target)
+  router: function(req) {
+      return 'http://localhost:8004';
+  }
+
+  // Custom router function (target object)
+  router: function(req) {
+      return {
+          protocol: 'https:', // The : is required
+          host: 'localhost',
+          port: 8004
+      };
+  }
+
+  // Asynchronous router function which returns promise
+  router: async function(req) {
+      const url = await doSomeIO();
+      return url;
+  }
+  ```
+
+- **option.logLevel**: string, ['debug', 'info', 'warn', 'error', 'silent']. Default: `'info'`
+
+- **option.logProvider**: function, modify or replace log provider. Default: `console`.
+
+  ```javascript
+  // simple replace
+  function logProvider(provider) {
+    // replace the default console log provider.
+    return require('winston');
+  }
+  ```
+
+  ```javascript
+  // verbose replacement
+  function logProvider(provider) {
+    const logger = new (require('winston').Logger)();
+
+    const myCustomProvider = {
+      log: logger.log,
+      debug: logger.debug,
+      info: logger.info,
+      warn: logger.warn,
+      error: logger.error,
+    };
+    return myCustomProvider;
+  }
+  ```
+
+### http-proxy events
+
+Subscribe to [http-proxy events](https://github.com/nodejitsu/node-http-proxy#listening-for-proxy-events):
+
+- **option.onError**: function, subscribe to http-proxy's `error` event for custom error handling.
+
+  ```javascript
+  function onError(err, req, res, target) {
+    res.writeHead(500, {
+      'Content-Type': 'text/plain',
+    });
+    res.end('Something went wrong. And we are reporting a custom error message.');
+  }
+  ```
+
+- **option.onProxyRes**: function, subscribe to http-proxy's `proxyRes` event.
+
+  ```javascript
+  function onProxyRes(proxyRes, req, res) {
+    proxyRes.headers['x-added'] = 'foobar'; // add new header to response
+    delete proxyRes.headers['x-removed']; // remove header from response
+  }
+  ```
+
+- **option.onProxyReq**: function, subscribe to http-proxy's `proxyReq` event.
+
+  ```javascript
+  function onProxyReq(proxyReq, req, res) {
+    // add custom header to request
+    proxyReq.setHeader('x-added', 'foobar');
+    // or log the req
+  }
+  ```
+
+- **option.onProxyReqWs**: function, subscribe to http-proxy's `proxyReqWs` event.
+
+  ```javascript
+  function onProxyReqWs(proxyReq, req, socket, options, head) {
+    // add custom header
+    proxyReq.setHeader('X-Special-Proxy-Header', 'foobar');
+  }
+  ```
+
+- **option.onOpen**: function, subscribe to http-proxy's `open` event.
+
+  ```javascript
+  function onOpen(proxySocket) {
+    // listen for messages coming FROM the target here
+    proxySocket.on('data', hybridParseAndLogMessage);
+  }
+  ```
+
+- **option.onClose**: function, subscribe to http-proxy's `close` event.
+
+  ```javascript
+  function onClose(res, socket, head) {
+    // view disconnected websocket connections
+    console.log('Client disconnected');
+  }
+  ```
+
+### http-proxy options
+
+The following options are provided by the underlying [http-proxy](https://github.com/nodejitsu/node-http-proxy#options) library.
+
+- **option.target**: url string to be parsed with the url module
+- **option.forward**: url string to be parsed with the url module
+- **option.agent**: object to be passed to http(s).request (see Node's [https agent](http://nodejs.org/api/https.html#https_class_https_agent) and [http agent](http://nodejs.org/api/http.html#http_class_http_agent) objects)
+- **option.ssl**: object to be passed to https.createServer()
+- **option.ws**: true/false: if you want to proxy websockets
+- **option.xfwd**: true/false, adds x-forward headers
+- **option.secure**: true/false, if you want to verify the SSL Certs
+- **option.toProxy**: true/false, passes the absolute URL as the `path` (useful for proxying to proxies)
+- **option.prependPath**: true/false, Default: true - specify whether you want to prepend the target's path to the proxy path
+- **option.ignorePath**: true/false, Default: false - specify whether you want to ignore the proxy path of the incoming request (note: you will have to append / manually if required).
+- **option.localAddress** : Local interface string to bind for outgoing connections
+- **option.changeOrigin**: true/false, Default: false - changes the origin of the host header to the target URL
+- **option.preserveHeaderKeyCase**: true/false, Default: false - specify whether you want to keep letter case of response header key
+- **option.auth** : Basic authentication i.e. 'user:password' to compute an Authorization header.
+- **option.hostRewrite**: rewrites the location hostname on (301/302/307/308) redirects.
+- **option.autoRewrite**: rewrites the location host/port on (301/302/307/308) redirects based on requested host/port. Default: false.
+- **option.protocolRewrite**: rewrites the location protocol on (301/302/307/308) redirects to 'http' or 'https'. Default: null.
+- **option.cookieDomainRewrite**: rewrites domain of `set-cookie` headers. Possible values:
+  - `false` (default): disable cookie rewriting
+  - String: new domain, for example `cookieDomainRewrite: "new.domain"`. To remove the domain, use `cookieDomainRewrite: ""`.
+  - Object: mapping of domains to new domains, use `"*"` to match all domains.  
+    For example keep one domain unchanged, rewrite one domain and remove other domains:
+    ```json
+    cookieDomainRewrite: {
+      "unchanged.domain": "unchanged.domain",
+      "old.domain": "new.domain",
+      "*": ""
+    }
+    ```
+- **option.cookiePathRewrite**: rewrites path of `set-cookie` headers. Possible values:
+  - `false` (default): disable cookie rewriting
+  - String: new path, for example `cookiePathRewrite: "/newPath/"`. To remove the path, use `cookiePathRewrite: ""`. To set path to root use `cookiePathRewrite: "/"`.
+  - Object: mapping of paths to new paths, use `"*"` to match all paths.
+    For example, to keep one path unchanged, rewrite one path and remove other paths:
+    ```json
+    cookiePathRewrite: {
+      "/unchanged.path/": "/unchanged.path/",
+      "/old.path/": "/new.path/",
+      "*": ""
+    }
+    ```
+- **option.headers**: object, adds [request headers](https://en.wikipedia.org/wiki/List_of_HTTP_header_fields#Request_fields). (Example: `{host:'www.example.org'}`)
+- **option.proxyTimeout**: timeout (in millis) when proxy receives no response from target
+- **option.timeout**: timeout (in millis) for incoming requests
+- **option.followRedirects**: true/false, Default: false - specify whether you want to follow redirects
+- **option.selfHandleResponse** true/false, if set to true, none of the webOutgoing passes are called and it's your responsibility to appropriately return the response by listening and acting on the `proxyRes` event
+- **option.buffer**: stream of data to send as the request body. Maybe you have some middleware that consumes the request stream before proxying it on e.g. If you read the body of a request into a field called 'req.rawbody' you could restream this field in the buffer option:
+
+  ```javascript
+  'use strict';
+
+  const streamify = require('stream-array');
+  const HttpProxy = require('http-proxy');
+  const proxy = new HttpProxy();
+
+  module.exports = (req, res, next) => {
+    proxy.web(
+      req,
+      res,
+      {
+        target: 'http://localhost:4003/',
+        buffer: streamify(req.rawBody),
+      },
+      next
+    );
+  };
+  ```
+
+## Shorthand
+
+Use the shorthand syntax when verbose configuration is not needed. The `context` and `option.target` will be automatically configured when shorthand is used. Options can still be used if needed.
+
+```javascript
+createProxyMiddleware('http://www.example.org:8000/api');
+// createProxyMiddleware('/api', {target: 'http://www.example.org:8000'});
+
+createProxyMiddleware('http://www.example.org:8000/api/books/*/**.json');
+// createProxyMiddleware('/api/books/*/**.json', {target: 'http://www.example.org:8000'});
+
+createProxyMiddleware('http://www.example.org:8000/api', { changeOrigin: true });
+// createProxyMiddleware('/api', {target: 'http://www.example.org:8000', changeOrigin: true});
+```
+
+### app.use(path, proxy)
+
+If you want to use the server's `app.use` `path` parameter to match requests;
+Create and mount the proxy without the http-proxy-middleware `context` parameter:
+
+```javascript
+app.use('/api', createProxyMiddleware({ target: 'http://www.example.org', changeOrigin: true }));
+```
+
+`app.use` documentation:
+
+- express: http://expressjs.com/en/4x/api.html#app.use
+- connect: https://github.com/senchalabs/connect#mount-middleware
+- polka: https://github.com/lukeed/polka#usebase-fn
+
+## WebSocket
+
+```javascript
+// verbose api
+createProxyMiddleware('/', { target: 'http://echo.websocket.org', ws: true });
+
+// shorthand
+createProxyMiddleware('http://echo.websocket.org', { ws: true });
+
+// shorter shorthand
+createProxyMiddleware('ws://echo.websocket.org');
+```
+
+### External WebSocket upgrade
+
+In the previous WebSocket examples, http-proxy-middleware relies on a initial http request in order to listen to the http `upgrade` event. If you need to proxy WebSockets without the initial http request, you can subscribe to the server's http `upgrade` event manually.
+
+```javascript
+const wsProxy = createProxyMiddleware('ws://echo.websocket.org', { changeOrigin: true });
+
+const app = express();
+app.use(wsProxy);
+
+const server = app.listen(3000);
+server.on('upgrade', wsProxy.upgrade); // <-- subscribe to http 'upgrade'
+```
+
+## Intercept and manipulate requests
+
+Intercept requests from downstream by defining `onProxyReq` in `createProxyMiddleware`.
+
+Currently the only pre-provided request interceptor is `fixRequestBody`, which is used to fix proxied POST requests when `bodyParser` is applied before this middleware.
+
+Example:
+
+```javascript
+const { createProxyMiddleware, fixRequestBody } = require('http-proxy-middleware');
+
+const proxy = createProxyMiddleware({
+  /**
+   * Fix bodyParser
+   **/
+  onProxyReq: fixRequestBody,
+});
+```
+
+## Intercept and manipulate responses
+
+Intercept responses from upstream with `responseInterceptor`. (Make sure to set `selfHandleResponse: true`)
+
+Responses which are compressed with `brotli`, `gzip` and `deflate` will be decompressed automatically. The response will be returned as `buffer` ([docs](https://nodejs.org/api/buffer.html)) which you can manipulate.
+
+With `buffer`, response manipulation is not limited to text responses (html/css/js, etc...); image manipulation will be possible too. ([example](https://github.com/chimurai/http-proxy-middleware/blob/master/recipes/response-interceptor.md#manipulate-image-response))
+
+NOTE: `responseInterceptor` disables streaming of target's response.
+
+Example:
+
+```javascript
+const { createProxyMiddleware, responseInterceptor } = require('http-proxy-middleware');
+
+const proxy = createProxyMiddleware({
+  /**
+   * IMPORTANT: avoid res.end being called automatically
+   **/
+  selfHandleResponse: true, // res.end() will be called internally by responseInterceptor()
+
+  /**
+   * Intercept response and replace 'Hello' with 'Goodbye'
+   **/
+  onProxyRes: responseInterceptor(async (responseBuffer, proxyRes, req, res) => {
+    const response = responseBuffer.toString('utf8'); // convert buffer to string
+    return response.replace('Hello', 'Goodbye'); // manipulate response and return the result
+  }),
+});
+```
+
+Check out [interception recipes](https://github.com/chimurai/http-proxy-middleware/blob/master/recipes/response-interceptor.md#readme) for more examples.
+
+## Working examples
+
+View and play around with [working examples](https://github.com/chimurai/http-proxy-middleware/tree/master/examples).
+
+- Browser-Sync ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/browser-sync/index.js))
+- express ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/express/index.js))
+- connect ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/connect/index.js))
+- WebSocket ([example source](https://github.com/chimurai/http-proxy-middleware/tree/master/examples/websocket/index.js))
+- Response Manipulation ([example source](https://github.com/chimurai/http-proxy-middleware/blob/master/examples/response-interceptor/index.js))
+
+## Recipes
+
+View the [recipes](https://github.com/chimurai/http-proxy-middleware/tree/master/recipes) for common use cases.
+
+## Compatible servers
+
+`http-proxy-middleware` is compatible with the following servers:
+
+- [connect](https://www.npmjs.com/package/connect)
+- [express](https://www.npmjs.com/package/express)
+- [fastify](https://www.npmjs.com/package/fastify)
+- [browser-sync](https://www.npmjs.com/package/browser-sync)
+- [lite-server](https://www.npmjs.com/package/lite-server)
+- [polka](https://github.com/lukeed/polka)
+- [grunt-contrib-connect](https://www.npmjs.com/package/grunt-contrib-connect)
+- [grunt-browser-sync](https://www.npmjs.com/package/grunt-browser-sync)
+- [gulp-connect](https://www.npmjs.com/package/gulp-connect)
+- [gulp-webserver](https://www.npmjs.com/package/gulp-webserver)
+
+Sample implementations can be found in the [server recipes](https://github.com/chimurai/http-proxy-middleware/tree/master/recipes/servers.md).
+
+## Tests
+
+Run the test suite:
+
+```bash
+# install dependencies
+$ yarn
+
+# linting
+$ yarn lint
+$ yarn lint:fix
+
+# building (compile typescript to js)
+$ yarn build
+
+# unit tests
+$ yarn test
+
+# code coverage
+$ yarn cover
+
+# check spelling mistakes
+$ yarn spellcheck
+```
+
+## Changelog
+
+- [View changelog](https://github.com/chimurai/http-proxy-middleware/blob/master/CHANGELOG.md)
+
+## License
+
+The MIT License (MIT)
+
+Copyright (c) 2015-2025 Steven Chim