Fix a Runtime Crash

index.js

@@ -79,8 +79,17 @@ function asyncHelpers(hbs) {
 
     return function(context, execOptions) {
       context = context || {}
+      const result = compiled.call(handlebars, context, execOptions)
+
+      if (isPromise(result)) {
+        // this are dummy methods to work with handlebar code, it is only designed for usage with that, otherwise it may break!
+        result.split = () => { return [] }
+        result.join = () => { return result }
 
-      return compiled.call(handlebars, context, execOptions)
+        return result
+
+      }
+      return result
     }
   }
   handlebars.ASYNC_VERSION = app.version

test/test.js

@@ -318,6 +318,37 @@ describe('Test async helpers', () => {
         const compiled = hbs.compile(template),
           result = await compiled()
         should.equal(result, expected)
+    })
+
+    it('Test indentation with async partial', async () => {
+        const hbs = asyncHelpers(Handlebars),
+            template = `<div>Parent 
+                            {{> child}}
+                            <div class="test">
+                                {{> child}}
+                            </div>
+                        </div>`,
+            child = '<div>Child:\n\t\t\t{{> grandChild}}\n</div>',
+            grandChild = '<p>\nGrand Child: {{#delayed 50}}\n{{/delayed}}\n</p>'
+
+        hbs.registerHelper('delayed', (time) => {
+            return new Promise((resolve) => {
+                setTimeout(() => resolve('Hello!'), time)
+            })
+        })
+
+
+        hbs.registerPartial('child', child)
+        hbs.registerPartial('grandChild', grandChild)
+
+        const compiled = hbs.compile(template)
+
+            const result = compiled()
+            await result.should.be.fulfilled();
+
+
+
+
     })
 
     it('Test synchronous helper', async () => {