fix: escape filter when input is undefined

harttle · Aug 25, 2019 · a00945c · a00945c
1 parent 0f4e6d9
commit a00945c
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/src/builtin/filters/html.ts b/src/builtin/filters/html.ts
@@ -14,7 +14,7 @@ const unescapeMap = {
 }
 
 function escape (str: string) {
-  return String(str).replace(/&|<|>|"|'/g, m => escapeMap[m])
+  return !!str ? String(str).replace(/&|<|>|"|'/g, m => escapeMap[m]) : ""
 }
 
 function unescape (str: string) {

diff --git a/test/integration/builtin/filters/html.ts b/test/integration/builtin/filters/html.ts
@@ -12,6 +12,9 @@ describe('filters/html', function () {
     it('should escape function', function () {
       return test('{{ func | escape }}', 'function () { }')
     })
+    it('should escape undefined', function () {
+      return test('{{ nonExistent.value | escape }}', '')
+    })
   })
   describe('escape_once', function () {
     it('should do escape', () =>