diff --git a/README.md b/README.md
index be522bc..dddbbec 100644
--- a/README.md
+++ b/README.md
@@ -85,8 +85,9 @@ paginate = 10
     customDarkCSS = "css/custom-dark.css"
 
     # Custom list of Javascript files to load. Just like custom CSS you can place js files under
-    # `static/js` folder and specify path here as `js/script-name.js`.
-    customJS = ["js/abc.js", "js/xyz.js"]
+    # `static/js` folder and specify path here as `js/script-name.js`. You can also specify full url,
+    # for example you may want to include external JS library.
+    customJS = ["js/abc.js", "js/xyz.js", "https://code.jquery.com/jquery-3.4.1.js"]
 
 # Main menu which appears below site header.
 [[menu.main]]
diff --git a/exampleSite/config.toml b/exampleSite/config.toml
index 06188ba..5a416fb 100644
--- a/exampleSite/config.toml
+++ b/exampleSite/config.toml
@@ -20,7 +20,7 @@ disqusShortname = "ezhil-demo"
 	mode = "auto" # "dark", "auto", "light"
 	# customCSS = "css/custom.css"  # Custom CSS applied to default styles.
 	# customDarkCSS = "css/custom-dark.css"  # Custom styles applied to dark mode css.
-	# customJS = ["js/custom.js", "js/custom1.js"]  # Custom JS scripts.
+	customJS = ["https://code.jquery.com/jquery-3.4.1.js", "js/custom1.js"]  # Custom JS scripts.
 
 [[menu.main]]
 name = "Home"
diff --git a/layouts/partials/header.html b/layouts/partials/header.html
index 3fa8a71..62e9d27 100644
--- a/layouts/partials/header.html
+++ b/layouts/partials/header.html
@@ -42,7 +42,11 @@
 	<script src="{{ .Site.BaseURL }}js/main.js"></script>
 	{{- if isset .Site.Params "customjs" -}}
 	{{- range .Site.Params.customJS }}
+	{{- if or (hasPrefix . "http://") (hasPrefix . "https://") }}
+	<script src="{{ . }}"></script>
+	{{- else }}
 	<script src="{{ $.Site.BaseURL }}{{ . }}"></script>
 	{{- end }}
 	{{- end }}
+	{{- end }}
 </head>