Index: frontend/node_modules/proxy-from-env/index.cjs
===================================================================
--- frontend/node_modules/proxy-from-env/index.cjs	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/proxy-from-env/index.cjs	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,105 @@
+'use strict';
+
+var DEFAULT_PORTS = {
+  ftp: 21,
+  gopher: 70,
+  http: 80,
+  https: 443,
+  ws: 80,
+  wss: 443,
+};
+
+function parseUrl(urlString) {
+  try {
+    return new URL(urlString);
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * @param {string|object|URL} url - The URL as a string or URL instance, or a
+ *   compatible object (such as the result from legacy url.parse).
+ * @return {string} The URL of the proxy that should handle the request to the
+ *  given URL. If no proxy is set, this will be an empty string.
+ */
+function getProxyForUrl(url) {
+  var parsedUrl = (typeof url === 'string' ? parseUrl(url) : url) || {};
+  var proto = parsedUrl.protocol;
+  var hostname = parsedUrl.host;
+  var port = parsedUrl.port;
+  if (typeof hostname !== 'string' || !hostname || typeof proto !== 'string') {
+    return '';  // Don't proxy URLs without a valid scheme or host.
+  }
+
+  proto = proto.split(':', 1)[0];
+  // Stripping ports in this way instead of using parsedUrl.hostname to make
+  // sure that the brackets around IPv6 addresses are kept.
+  hostname = hostname.replace(/:\d*$/, '');
+  port = parseInt(port) || DEFAULT_PORTS[proto] || 0;
+  if (!shouldProxy(hostname, port)) {
+    return '';  // Don't proxy URLs that match NO_PROXY.
+  }
+
+  var proxy = getEnv(proto + '_proxy') || getEnv('all_proxy');
+  if (proxy && proxy.indexOf('://') === -1) {
+    // Missing scheme in proxy, default to the requested URL's scheme.
+    proxy = proto + '://' + proxy;
+  }
+  return proxy;
+}
+
+/**
+ * Determines whether a given URL should be proxied.
+ *
+ * @param {string} hostname - The host name of the URL.
+ * @param {number} port - The effective port of the URL.
+ * @returns {boolean} Whether the given URL should be proxied.
+ * @private
+ */
+function shouldProxy(hostname, port) {
+  var NO_PROXY = getEnv('no_proxy').toLowerCase();
+  if (!NO_PROXY) {
+    return true;  // Always proxy if NO_PROXY is not set.
+  }
+  if (NO_PROXY === '*') {
+    return false;  // Never proxy if wildcard is set.
+  }
+
+  return NO_PROXY.split(/[,\s]/).every(function(proxy) {
+    if (!proxy) {
+      return true;  // Skip zero-length hosts.
+    }
+    var parsedProxy = proxy.match(/^(.+):(\d+)$/);
+    var parsedProxyHostname = parsedProxy ? parsedProxy[1] : proxy;
+    var parsedProxyPort = parsedProxy ? parseInt(parsedProxy[2]) : 0;
+    if (parsedProxyPort && parsedProxyPort !== port) {
+      return true;  // Skip if ports don't match.
+    }
+
+    if (!/^[.*]/.test(parsedProxyHostname)) {
+      // No wildcards, so stop proxying if there is an exact match.
+      return hostname !== parsedProxyHostname;
+    }
+
+    if (parsedProxyHostname.charAt(0) === '*') {
+      // Remove leading wildcard.
+      parsedProxyHostname = parsedProxyHostname.slice(1);
+    }
+    // Stop proxying if the hostname ends with the no_proxy host.
+    return !hostname.endsWith(parsedProxyHostname);
+  });
+}
+
+/**
+ * Get the value for an environment variable.
+ *
+ * @param {string} key - The name of the environment variable.
+ * @return {string} The value of the environment variable.
+ * @private
+ */
+function getEnv(key) {
+  return process.env[key.toLowerCase()] || process.env[key.toUpperCase()] || '';
+}
+
+exports.getProxyForUrl = getProxyForUrl;