From cc7df68aea62e2e3a18c996fa56048f1e583faa5 Mon Sep 17 00:00:00 2001
From: Jamie Peabody <jamie.peabody@gmail.com>
Date: Tue, 24 Feb 2026 20:19:07 +0000
Subject: [PATCH] fix(#228): Clicking on edit marker in gutter now accounts for
 top position of editor.

---
 src/diff-view.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/diff-view.js b/src/diff-view.js
index 5465317..99faeb8 100644
--- a/src/diff-view.js
+++ b/src/diff-view.js
@@ -1190,7 +1190,9 @@ CodeMirrorDiffView.prototype._renderDiff = function(changes) {
 		ex.lhs_scroller.scrollTo({ top: sto });
 	};
 	this._handleRhsMarginClick = function (ev) {
-		const y = ev.pageY - ex.rhs_xyoffset.top - (rto / 2);
+		// `top` accounts for the editor starting at position other than 0 on page
+		const { top } = ev.currentTarget.offsetParent.getBoundingClientRect();
+		const y = (ev.pageY - top) - ex.rhs_xyoffset.top - (rto / 2);
 		const sto = Math.max(0, (y / mcanvas_rhs.height) * ex.rhs_scroller.scrollHeight);
 		ex.rhs_scroller.scrollTo({ top: sto });
 	};