From b63415a3db03ceb1fb446a7fcb1f7980bf12def2 Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Thu, 4 Nov 2021 11:48:07 -0400
Subject: [PATCH] Fix breaking navigation through links [regression]

Regression from:
- https://github.com/uBlockOrigin/uBlock-issues/issues/1797
---
 src/js/scriptlets/subscriber.js | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/js/scriptlets/subscriber.js b/src/js/scriptlets/subscriber.js
index 1f0ae40b5..ee8cf5989 100644
--- a/src/js/scriptlets/subscriber.js
+++ b/src/js/scriptlets/subscriber.js
@@ -61,14 +61,15 @@ const onMaybeSubscriptionLinkClicked = function(target) {
         }
         const location = subscribeURL.searchParams.get('location') || '';
         const title = subscribeURL.searchParams.get('title') || '';
-        if ( location === '' || title === '' ) { return; }
+        if ( location === '' || title === '' ) { return true; }
         // https://github.com/uBlockOrigin/uBlock-issues/issues/1797
-        if ( /^(file|https?):\/\//.test(location) === false ) { return; }
+        if ( /^(file|https?):\/\//.test(location) === false ) { return true; }
         vAPI.messaging.send('scriptlets', {
             what: 'subscribeTo',
             location,
             title,
         });
+        return true;
     } catch (_) {
     }
 };
@@ -80,9 +81,10 @@ document.addEventListener('click', ev => {
     if ( ev.button !== 0 || ev.isTrusted === false ) { return; }
     const target = ev.target.closest('a');
     if ( target instanceof HTMLAnchorElement === false ) { return; }
-    onMaybeSubscriptionLinkClicked(target);
-    ev.stopPropagation();
-    ev.preventDefault();
+    if ( onMaybeSubscriptionLinkClicked(target) === true ) {
+        ev.stopPropagation();
+        ev.preventDefault();
+    }
 });
 
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