diff --git a/static/app.js b/static/app.js
index 7d3b9e0..c4d80a8 100644
--- a/static/app.js
+++ b/static/app.js
@@ -632,6 +632,7 @@ function parseUnifiedDiff(text) {
 	const files = [];
 	let cur = null;
 	let oldNo = 0, newNo = 0;
+	let inHunk = false; // 词级模式（--word-diff=plain）下 git 的上下文行不带前导空格，需据此兜底
 	const push = (header) => { cur = { header, rows: [] }; files.push(cur); return cur; };
 	for (const line of lines) {
 		if (line.startsWith('diff --git') || line.startsWith('Index: ')) { push(line); continue; }