diff --git a/actions.js b/actions.js
index c9e88f5..b04e76b 100644
--- a/actions.js
+++ b/actions.js
@@ -98,25 +98,28 @@ actions.fakeSpot = (url = util.getCurrentLocation("href")) =>
 actions.az = {}
 actions.az.viewProduct = () => {
   const reHost = /^([-\w]+[.])*amazon.\w+$/
-  const rePath = /^(?:.*\/)*(?:dp|gp\/product)(?:\/(?<asin>\w{10})).*/
+  const rePath = /^(?:.*\/)*(?:dp|gp\/product)(?:\/(\w{10})).*/
   const elements = {}
   document.querySelectorAll("a[href]").forEach((a) => {
     const u = new URL(a.href)
     if (u.hash.length === 0 && reHost.test(u.hostname)) {
       const rePathRes = rePath.exec(u.pathname)
-      if (rePathRes === null) {
+      if (rePathRes === null || rePathRes.length !== 2) {
         return
       }
       if (!util.isElementInViewport(a)) {
         return
       }
-      if (elements[rePathRes.groups.asin] !== undefined) {
-        if (!(elements[rePathRes.groups.asin].text.trim().length === 0
-           && a.text.trim().length > 0)) {
+
+      const asin = rePathRes[1]
+
+      if (elements[asin] !== undefined) {
+        if (!(elements[asin].text.trim().length === 0 && a.text.trim().length > 0)) {
           return
         }
       }
-      elements[rePathRes.groups.asin] = a
+
+      elements[asin] = a
     }
   })
   Hints.create(Object.values(elements), Hints.dispatchMouseClick)