diff --git a/CHANGELOG.md b/CHANGELOG.md
index e3327cd..5c889d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Features
+
+- Add support for passing custom headers to `WebView` (only for the openInWebView option). [RMET-4287](https://outsystemsrd.atlassian.net/browse/RMET-4287).
+
 ### Chores
 
 - Migrate publishing from OSSRH to Central Portal (https://outsystemsrd.atlassian.net/browse/RMET-4217)
diff --git a/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/routeradapters/OSIABWebViewRouterAdapter.kt b/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/routeradapters/OSIABWebViewRouterAdapter.kt
index c8977c8..6f5b741 100644
--- a/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/routeradapters/OSIABWebViewRouterAdapter.kt
+++ b/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/routeradapters/OSIABWebViewRouterAdapter.kt
@@ -2,6 +2,7 @@ package com.outsystems.plugins.inappbrowser.osinappbrowserlib.routeradapters
 
 import android.content.Context
 import android.content.Intent
+import android.os.Bundle
 import com.outsystems.plugins.inappbrowser.osinappbrowserlib.OSIABEvents
 import com.outsystems.plugins.inappbrowser.osinappbrowserlib.helpers.OSIABFlowHelperInterface
 import com.outsystems.plugins.inappbrowser.osinappbrowserlib.models.OSIABWebViewOptions
@@ -19,7 +20,8 @@ class OSIABWebViewRouterAdapter(
     flowHelper: OSIABFlowHelperInterface,
     onBrowserPageLoaded: () -> Unit,
     onBrowserFinished: () -> Unit,
-    private val onBrowserPageNavigationCompleted: (String?) -> Unit
+    private val onBrowserPageNavigationCompleted: (String?) -> Unit,
+    private val customHeaders: Map<String, String>? = null
 ) : OSIABBaseRouterAdapter<OSIABWebViewOptions, Boolean>(
     context = context,
     lifecycleScope = lifecycleScope,
@@ -33,6 +35,7 @@ class OSIABWebViewRouterAdapter(
     companion object {
         const val WEB_VIEW_URL_EXTRA = "WEB_VIEW_URL_EXTRA"
         const val WEB_VIEW_OPTIONS_EXTRA = "WEB_VIEW_OPTIONS_EXTRA"
+        const val CUSTOM_HEADERS_EXTRA = "CUSTOM_HEADERS_EXTRA"
     }
 
     private var webViewActivityRef: WeakReference<OSIABWebViewActivity>? = null
@@ -101,6 +104,11 @@ class OSIABWebViewRouterAdapter(
                         putExtra(OSIABEvents.EXTRA_BROWSER_ID, browserId)
                         putExtra(WEB_VIEW_URL_EXTRA, url)
                         putExtra(WEB_VIEW_OPTIONS_EXTRA, options)
+                        putExtra(CUSTOM_HEADERS_EXTRA, Bundle().apply {
+                            customHeaders?.forEach { (key, value) ->
+                                putString(key, value)
+                            }
+                        })
                     }
                 )
 
diff --git a/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/views/OSIABWebViewActivity.kt b/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/views/OSIABWebViewActivity.kt
index bf14734..a739ab4 100644
--- a/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/views/OSIABWebViewActivity.kt
+++ b/src/main/java/com.outsystems.plugins.inappbrowser/osinappbrowserlib/views/OSIABWebViewActivity.kt
@@ -87,6 +87,7 @@ class OSIABWebViewActivity : AppCompatActivity() {
     companion object {
         const val WEB_VIEW_URL_EXTRA = "WEB_VIEW_URL_EXTRA"
         const val WEB_VIEW_OPTIONS_EXTRA = "WEB_VIEW_OPTIONS_EXTRA"
+        const val CUSTOM_HEADERS_EXTRA = "CUSTOM_HEADERS_EXTRA"
         const val DISABLED_ALPHA = 0.3f
         const val ENABLED_ALPHA = 1.0f
         const val REQUEST_STANDARD_PERMISSION = 622
@@ -104,7 +105,7 @@ class OSIABWebViewActivity : AppCompatActivity() {
 
         browserId = intent.getStringExtra(OSIABEvents.EXTRA_BROWSER_ID) ?: ""
 
-        sendWebViewEvent(OSIABWebViewEvent(browserId,this@OSIABWebViewActivity))
+        sendWebViewEvent(OSIABWebViewEvent(browserId, this@OSIABWebViewActivity))
 
         appName = applicationInfo.loadLabel(packageManager).toString()
 
@@ -119,6 +120,10 @@ class OSIABWebViewActivity : AppCompatActivity() {
             intent.extras?.getSerializable(WEB_VIEW_OPTIONS_EXTRA) as OSIABWebViewOptions
         }
 
+        val customHeaders: Map<String, String>? = intent.getBundleExtra(CUSTOM_HEADERS_EXTRA)?.let { bundle ->
+            bundle.keySet().associateWith { bundle.getString(it).orEmpty() }
+        }
+
         setContentView(R.layout.activity_web_view)
 
         //get elements in screen
@@ -157,7 +162,7 @@ class OSIABWebViewActivity : AppCompatActivity() {
 
         setupWebView()
         if (urlToOpen != null) {
-            webView.loadUrl(urlToOpen)
+            webView.loadUrl(urlToOpen, customHeaders ?: emptyMap())
             showLoadingScreen()
         }