fix: Fixed an issue that caused an error if Object was null for vfm

vivliostyle · Jul 2, 2021 · 38906f0 · 38906f0
1 parent 43233a3
commit 38906f0
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/plugins/metadata.ts b/src/plugins/metadata.ts
@@ -216,7 +216,7 @@ const readAttributesCollection = (
  * @returns Settings.
  */
 const readSettings = (data: any): VFMSettings => {
-  if (typeof data !== 'object') {
+  if (data === null || typeof data !== 'object') {
     return { toc: false };
   }
 

diff --git a/tests/metadata.test.ts b/tests/metadata.test.ts
@@ -273,10 +273,10 @@ Text
 
 it('Specify null or empty string for Object', () => {
   const md = `---
-html:
+html: ''
 meta:
   -
-vfm: ''
+vfm:
 ---
 `;
   const received = stringify(md);