diff --git a/material/assets/javascripts/application.js b/material/assets/javascripts/application.js
index ba9411c57..4abd3a303 100644
--- a/material/assets/javascripts/application.js
+++ b/material/assets/javascripts/application.js
@@ -739,6 +739,7 @@ var Application =
 	      /* Retrieve the facts for the given repository type */
 	      ;(function () {
 	        var el = document.querySelector("[data-md-source]");
+	        if (!el) return Promise.resolve([]);
 	        switch (el.dataset.mdSource) {
 	          case "github":
 	            return new _Material2.default.Source.Adapter.GitHub(el).fetch();
diff --git a/src/assets/javascripts/application.js b/src/assets/javascripts/application.js
index 9c8f66d66..ae1b693b8 100644
--- a/src/assets/javascripts/application.js
+++ b/src/assets/javascripts/application.js
@@ -196,6 +196,7 @@ export default class Application {
     /* Retrieve the facts for the given repository type */
     ;(() => {
       const el = document.querySelector("[data-md-source]")
+      if (!el) return Promise.resolve([])
       switch (el.dataset.mdSource) {
         case "github": return new Material.Source.Adapter.GitHub(el).fetch()
         default: return Promise.resolve([])