Index: node_modules/prebuild-install/proxy.js
===================================================================
--- node_modules/prebuild-install/proxy.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
+++ node_modules/prebuild-install/proxy.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
@@ -0,0 +1,35 @@
+const url = require('url')
+const tunnel = require('tunnel-agent')
+const util = require('./util')
+
+function applyProxy (reqOpts, opts) {
+  const log = opts.log || util.noopLogger
+
+  const proxy = opts['https-proxy'] || opts.proxy
+
+  if (proxy) {
+    // eslint-disable-next-line node/no-deprecated-api
+    const parsedDownloadUrl = url.parse(reqOpts.url)
+    // eslint-disable-next-line node/no-deprecated-api
+    const parsedProxy = url.parse(proxy)
+    const uriProtocol = (parsedDownloadUrl.protocol === 'https:' ? 'https' : 'http')
+    const proxyProtocol = (parsedProxy.protocol === 'https:' ? 'Https' : 'Http')
+    const tunnelFnName = [uriProtocol, proxyProtocol].join('Over')
+    reqOpts.agent = tunnel[tunnelFnName]({
+      proxy: {
+        host: parsedProxy.hostname,
+        port: +parsedProxy.port,
+        proxyAuth: parsedProxy.auth
+      }
+    })
+    log.http('request', 'Proxy setup detected (Host: ' +
+    parsedProxy.hostname + ', Port: ' +
+      parsedProxy.port + ', Authentication: ' +
+      (parsedProxy.auth ? 'Yes' : 'No') + ')' +
+      ' Tunneling with ' + tunnelFnName)
+  }
+
+  return reqOpts
+}
+
+module.exports = applyProxy