diff --git a/service/internal/sharerelay/static/index.html b/service/internal/sharerelay/static/index.html
index 4fea4c11..d3ed0685 100644
--- a/service/internal/sharerelay/static/index.html
+++ b/service/internal/sharerelay/static/index.html
@@ -13,6 +13,8 @@
   html, body { margin: 0; height: 100%; background: var(--bg); color: var(--fg); font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; }
   body { display: flex; flex-direction: column; }
   header[hidden] { display: none; }
+  /* The camera's page asked for the whole screen (window.__share.fill). */
+  body.share-fill > header { display: none; }
   /* One row, always: every pixel this bar takes is a pixel off the picture,
      and on a phone the wrapped version was three rows -- a fifth of the
      screen -- above the camera's own navbar. Narrow, the name gives way
diff --git a/service/internal/sharerelay/static/shell.js b/service/internal/sharerelay/static/shell.js
index 9d50b5d9..10615c2f 100644
--- a/service/internal/sharerelay/static/shell.js
+++ b/service/internal/sharerelay/static/shell.js
@@ -354,6 +354,9 @@ async function main() {
     window.__share = {
       openWebSocket: (path, protocols, h) => openWebSocket(tunnel, path, protocols, h), welcome,
       ice: await iceServers.catch(() => []), trace: (what, detail) => trace('camera page: ' + what, detail),
+      // The camera's Live page filling the screen where the browser has no
+      // fullscreen for it (an iPhone): this page's bar steps aside too.
+      fill: (on) => { document.body.classList.toggle('share-fill', !!on); },
     };
     let player = null;
     tunnel.onclose = (why) => {