diff --git a/app/src/components/mainWindow/mainWindow.js b/app/src/components/mainWindow/mainWindow.js
index d3b53af..dcff241 100644
--- a/app/src/components/mainWindow/mainWindow.js
+++ b/app/src/components/mainWindow/mainWindow.js
@@ -75,6 +75,15 @@ function clearCache(browserWindow, targetUrl = null) {
   });
 }
 
+function setProxyRules(browserWindow, proxyRules) {
+  browserWindow.webContents.session.setProxy(
+    {
+      proxyRules,
+    },
+    () => {},
+  );
+}
+
 /**
  *
  * @param {{}} inpOptions AppArgs from nativefier.json
@@ -284,6 +293,11 @@ function createMainWindow(inpOptions, onAppQuit, setDockBadge) {
     if (options.userAgent) {
       window.webContents.setUserAgent(options.userAgent);
     }
+
+    if (options.proxyRules) {
+      setProxyRules(window, options.proxyRules);
+    }
+
     maybeInjectCss(window);
     sendParamsOnDidFinishLoad(window);
     window.webContents.on('new-window', onNewWindow);
@@ -318,6 +332,10 @@ function createMainWindow(inpOptions, onAppQuit, setDockBadge) {
     mainWindow.webContents.setUserAgent(options.userAgent);
   }
 
+  if (options.proxyRules) {
+    setProxyRules(mainWindow, options.proxyRules);
+  }
+
   maybeInjectCss(mainWindow);
   sendParamsOnDidFinishLoad(mainWindow);
 
diff --git a/docs/api.md b/docs/api.md
index c4273f7..d5ef9ea 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -43,6 +43,7 @@
     - [[enable-es3-apis]](#enable-es3-apis)
     - [[insecure]](#insecure)
     - [[internal-urls]](#internal-urls)
+    - [[proxy-rules]](#proxy-rules)
     - [[flash]](#flash)
     - [[flash-path]](#flash-path)
     - [[disk-cache-size]](#disk-cache-size)
@@ -378,6 +379,21 @@ Or, if you want to allow all domains for example for external auths,
 nativefier https://google.com --internal-urls ".*?"
 ```
 
+
+#### [proxy-rules]
+
+```
+--proxy-rules <value>
+```
+
+Proxy rules. See [proxyRules](https://electronjs.org/docs/api/session?q=proxy#sessetproxyconfig-callback) for more details.
+
+Example:
+
+```bash
+nativefier https://google.com --proxy-rules http://127.0.0.1:1080
+```
+
 #### [flash]
 
 ```
diff --git a/src/build/buildApp.js b/src/build/buildApp.js
index 1391411..a92317c 100644
--- a/src/build/buildApp.js
+++ b/src/build/buildApp.js
@@ -42,6 +42,7 @@ function selectAppArgs(options) {
     disableDevTools: options.disableDevTools,
     zoom: options.zoom,
     internalUrls: options.internalUrls,
+    proxyRules: options.proxyRules,
     crashReporter: options.crashReporter,
     singleInstance: options.singleInstance,
     clearCache: options.clearCache,
diff --git a/src/cli.js b/src/cli.js
index 00324f6..f2355d3 100755
--- a/src/cli.js
+++ b/src/cli.js
@@ -200,6 +200,10 @@ if (require.main === module) {
       '--internal-urls <value>',
       'regular expression of URLs to consider "internal"; all other URLs will be opened in an external browser.  (default: URLs on same second-level domain as app)',
     )
+    .option(
+      '--proxy-rules <value>',
+      'proxy rules. See https://electronjs.org/docs/api/session?q=proxy#sessetproxyconfig-callback',
+    )
     .option(
       '--crash-reporter <value>',
       'remote server URL to send crash reports',
diff --git a/src/options/optionsMain.js b/src/options/optionsMain.js
index 72c1de3..5cf883d 100644
--- a/src/options/optionsMain.js
+++ b/src/options/optionsMain.js
@@ -58,6 +58,7 @@ export default function(inpOptions) {
     tmpdir: false,
     zoom: inpOptions.zoom || 1.0,
     internalUrls: inpOptions.internalUrls || null,
+    proxyRules: inpOptions.proxyRules || null,
     singleInstance: inpOptions.singleInstance || false,
     clearCache: inpOptions.clearCache || false,
     appVersion: inpOptions.appVersion,