diff --git a/.gitignore b/.gitignore
index 67b9620..ae0f955 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,8 @@ node_modules
 data.json
 main.js
 main.js.LICENSE.txt
+release
+deploy.bat
+
+
 
diff --git a/src/main.ts b/src/main.ts
index b31c30c..c306e19 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -79,8 +79,8 @@ export default class URLBlockPlugin extends Plugin {
 				if (p.parentElement.tagName !== "DIV" || p.children.length !== 1)continue;
 				const ael = p.children[0] as HTMLAnchorElement;
 				if (ael.tagName == "A" && ael.className === "external-link" && p.textContent === ael.textContent ) {
-					const href = ael.href;
-					const g = r.exec(href)
+					const g = r.exec(ael.href)
+					if (!g) continue;
 					let icon = "";
 					if (g) {
 						icon = g[1] + "/favicon.ico";