Fixed disappearance of header shadow on iOS

material/assets/manifest.json

@@ -1,10 +1,10 @@
 {
-  "assets/javascripts/bundle.js": "assets/javascripts/bundle.54e9a512.min.js",
-  "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.54e9a512.min.js.map",
+  "assets/javascripts/bundle.js": "assets/javascripts/bundle.676c670f.min.js",
+  "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.676c670f.min.js.map",
   "assets/javascripts/worker/packer.js": "assets/javascripts/worker/packer.c14659e8.min.js",
   "assets/javascripts/worker/packer.js.map": "assets/javascripts/worker/packer.c14659e8.min.js.map",
-  "assets/javascripts/worker/search.js": "assets/javascripts/worker/search.91831cf6.min.js",
-  "assets/javascripts/worker/search.js.map": "assets/javascripts/worker/search.91831cf6.min.js.map",
+  "assets/javascripts/worker/search.js": "assets/javascripts/worker/search.3144ce89.min.js",
+  "assets/javascripts/worker/search.js.map": "assets/javascripts/worker/search.3144ce89.min.js.map",
   "assets/stylesheets/app-palette.scss": "assets/stylesheets/app-palette.8c25017f.min.css",
-  "assets/stylesheets/app.scss": "assets/stylesheets/app.82c13014.min.css"
+  "assets/stylesheets/app.scss": "assets/stylesheets/app.a4472ab8.min.css"
 }

material/base.html

@@ -43,7 +43,7 @@
       {% endif %}
     {% endblock %}
     {% block styles %}
-      <link rel="stylesheet" href="{{ 'assets/stylesheets/app.82c13014.min.css' | url }}">
+      <link rel="stylesheet" href="{{ 'assets/stylesheets/app.a4472ab8.min.css' | url }}">
       {% if palette.primary or palette.accent %}
         <link rel="stylesheet" href="{{ 'assets/stylesheets/app-palette.8c25017f.min.css' | url }}">
       {% endif %}
@@ -190,7 +190,7 @@
       {% endblock %}
     </div>
     {% block scripts %}
-      <script src="{{ 'assets/javascripts/bundle.54e9a512.min.js' | url }}"></script>
+      <script src="{{ 'assets/javascripts/bundle.676c670f.min.js' | url }}"></script>
       <script id="__lang" type="application/json">
         {%- set translations = {} -%}
         {%- for key in [
@@ -209,7 +209,7 @@
         {%- endfor -%}
         {{ translations | tojson }}
       </script>
-      <script>app=initialize({base:"{{ base_url }}",worker:{search:"{{ 'assets/javascripts/worker/search.91831cf6.min.js' | url }}",packer:"{{ 'assets/javascripts/worker/packer.c14659e8.min.js' | url }}"}})</script>
+      <script>app=initialize({base:"{{ base_url }}",worker:{search:"{{ 'assets/javascripts/worker/search.3144ce89.min.js' | url }}",packer:"{{ 'assets/javascripts/worker/packer.c14659e8.min.js' | url }}"}})</script>
       {% for path in config["extra_javascript"] %}
         <script src="{{ path | url }}"></script>
       {% endfor %}

src/assets/javascripts/components/tabs/index.ts

@@ -77,7 +77,7 @@ export function mountTabs(
           if (screen) {
             return watchViewportFrom(el, { header$, viewport$ })
               .pipe(
-                paintHideable(el, 20),
+                paintHideable(el, 10),
                 map(hidden => ({ hidden }))
               )
 

src/assets/javascripts/observables/agent/viewport/offset/index.ts

@@ -46,8 +46,8 @@ export interface ViewportOffset {
  */
 export function getViewportOffset(): ViewportOffset {
   return {
-    x: pageXOffset,
-    y: pageYOffset
+    x: Math.max(0, pageXOffset),
+    y: Math.max(0, pageYOffset)
   }
 }