diff --git a/js/frontmatter.js b/js/frontmatter.js
index 8a7c643..de50486 100644
--- a/js/frontmatter.js
+++ b/js/frontmatter.js
@@ -39,6 +39,7 @@ export function parseFrontmatter(raw) {
     const meta = {};
     let arrayKey = null;
     for (const line of match[1].split(/\r?\n/)) {
+        if (!line.trim()) continue; // blank line — doesn't close a block array
         const item = line.match(/^\s*-\s+(.*)$/);
         if (item && arrayKey) { meta[arrayKey].push(parseScalar(item[1])); continue; }
         const field = line.match(/^([A-Za-z][A-Za-z0-9_-]*):(?:\s*(.*))?$/);