Exposing meta tags from attachShadowDoc (ampproject#22735)

* exposing meta tags from attachShadowDoc * exposes doc head via attachDoc in shadow mode * removed copying meta
PHCCorso · Jun 25, 2019 · 2fc25dc · 2fc25dc
1 parent 4cd544b
commit 2fc25dc
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diff --git a/src/runtime.js b/src/runtime.js
@@ -641,6 +641,7 @@ export class MultidocManager {
   mergeShadowHead_(ampdoc, shadowRoot, doc) {
     const extensionIds = [];
     if (doc.head) {
+      shadowRoot.AMP.head = doc.head;
       const parentLinks = {};
       const links = childElementsByTag(
         dev().assertElement(this.win.document.head),

diff --git a/test/unit/test-runtime.js b/test/unit/test-runtime.js
@@ -1366,6 +1366,13 @@ describes.realWin(
         expect(viewer.getVisibilityState()).to.equal('inactive');
         expect(viewer.dispose).to.be.calledOnce;
       });
+
+      it('should expose head tag ', () => {
+        const amp = win.AMP.attachShadowDoc(hostElement, importDoc, docUrl);
+        expect(amp.head).to.exist;
+        expect(amp.head.children).to.exist;
+        expect(amp.head.children.length).to.greaterThan(0);
+      });
     });
 
     describe