diff --git a/templates/framework/header-shared.ezt b/templates/framework/header-shared.ezt
new file mode 100644
index 0000000..614fe5c
--- /dev/null
+++ b/templates/framework/header-shared.ezt
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+[# This is the part of header.ezt used by both the legacy
+   Monorail UI, and the new Polymer pages.
+]
+<html lang="en">
+<head>
+  <link rel="icon" type="image/vnd.microsoft.icon" href="/static/images/monorail.ico">
+  [if-any link_rel_canonical]
+    <link rel="canonical" href="[link_rel_canonical]">
+  [end]
+
+  <script type="text/javascript" nonce="[nonce]">
+   [# Javascript object containing basic page data. ]
+   window.CS_env = {
+     'absoluteBaseUrl': '[format "js"][absolute_base_url][end]',
+     'app_version': '[format "js"][app_version][end]',
+     'token': '[format "js"][xhr_token][end]',
+     'tokenExpiresSec': [format "js"][token_expires_sec][end],
+     'loggedInUserEmail':
+       [if-any logged_in_user]
+         '[format "js"][logged_in_user.email][end]'
+       [else]
+         null
+       [end],
+     'login_url': '[format "js"][login_url][end]',
+     'logout_url': '[format "js"][logout_url][end]',
+     'profileUrl':
+       [if-any logged_in_user]
+         '[format "js"][logged_in_user.profile_url][end]'
+       [else]
+         null
+       [end],
+     'projectName': '[format "js"][projectname][end]',
+     'projectIsRestricted': [if-any project_is_restricted]true[else]false[end],
+     'is_member': '[format "js"][is_member][end]',
+     'gapi_client_id': '[format "js"][gapi_client_id][end]',
+   };
+  </script>
+
+  [# Improve the snippet that appears in search]
+  [if-any show_search_metadata]
+    <meta name="Description" content="Monorail is simple, reliable, and flexible issue tracking tool.">
+    <meta name="robots" content="NOODP">
+  [end]
+
+    <title>
+      [if-any title][title] - [end]
+      [if-any title_summary][title_summary] - [end]
+      [if-any projectname]
+        [projectname] -
+      [else]
+        [if-any viewing_user_page][viewed_user.display_name] - [end]
+      [end]
+      [if-any title_summary][else]
+        [if-any project_summary][project_summary] - [end]
+      [end]
+      [site_name]
+    </title>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+    <meta name="referrer" content="no-referrer">
+    [if-any robots_no_index]
+     <meta name="ROBOTS" content="NOINDEX,NOARCHIVE">
+    [else]
+     <meta name="ROBOTS" content="NOARCHIVE">
+    [end]
+    <meta name="viewport" content="width=device-width, minimum-scale=1.0">
+    <link type="text/css" rel="stylesheet" href="[version_base]/static/css/chopsui-normal.css">
+
+    [if-any is_ezt]
+      <link type="text/css" rel="stylesheet" href="[version_base]/static/css/ph_core.css">
+      <link type="text/css" rel="stylesheet" media="(max-width:425px)"
+            href="[version_base]/static/css/ph_mobile.css">
+
+      [if-any category_css]
+        <link type="text/css" rel="stylesheet" href="[version_base]/static/[category_css]">
+      [end]
+      [if-any category2_css]
+        <link type="text/css" rel="stylesheet" href="[version_base]/static/[category2_css]">
+      [end]
+      [if-any page_css]
+        <link type="text/css" rel="stylesheet" href="[version_base]/static/[page_css]">
+      [end]
+    [end]
+
+    <!-- Lazy load icons. -->
+    <link rel="stylesheet"
+      href="https://fonts.googleapis.com/icon?family=Material+Icons"
+      media="none"
+      id="icons-stylesheet">
+    <script type="module" async defer nonce="[nonce]">
+      document.getElementById('icons-stylesheet').media = 'all';
+    </script>
+    [# NO MORE SCRIPTS IN HEAD, it makes page loading too slow.]
+</head>
+
+[# Tiny script used sitewide. ]
+<script type="text/javascript" nonce="[nonce]">
+   function _go(url, newWindow) {
+     if (newWindow)
+       window.open(url, '_blank');
+     else
+       document.location = url;
+   }
+   function $(id) { return document.getElementById(id); }
+
+   var loadQueue = [];
+   function runOnLoad(fn) { loadQueue.push(fn); }
+
+   window.onload = function() {
+     for (var i = 0; i < loadQueue.length; i++)
+       loadQueue[[]i]();
+     delete loadQueue;
+   };
+</script>