Alex — Adom Molecule LED Nameplate

@@ -1296,18 +1296,39 @@ function loadAlphabet() { }  function loadAdom3D() {-  // Hosted as a release asset rather than a page file: page files are capped at-  // ~4 MB and this bundle is 13 MB. Release assets have no cap, and the CSP-  // (`script-src 'unsafe-inline' https:`) allows any https: source, so this can-  // be an ordinary streaming script tag instead of a chunked fetch reassembled-  // into one 13 MB string.-  return new Promise((resolve, reject) => {+  // Two wiki constraints shape this.+  //+  // 1. The render endpoint 413s on files over ~4 MB and this bundle is 13 MB,+  //    so it ships as 4 byte-exact parts, reassembled as bytes (never as+  //    text) because a multi-byte character can straddle a split boundary.+  //+  // 2. The page CSP is `script-src 'unsafe-inline' https:`. That permits an+  //    INLINE script but blocks `blob:`, so handing the reassembled bundle to+  //    URL.createObjectURL and setting script.src fails with+  //    "Loading the script 'blob:null/...' violates ... Content Security+  //    Policy". Setting textContent runs it under 'unsafe-inline' instead.+  //    An inline script executes synchronously on append, so there is nothing+  //    to await once it is in the DOM.+  return (async () => {+    const N = 4;+    const bufs = [];+    for (let i = 0; i < N; i++) {+      const r = await fetch('js/adom-3d-viewer.min.js.part' + i);+      if (!r.ok) throw new Error('viewer bundle part ' + i + ' -> HTTP ' + r.status);+      bufs.push(new Uint8Array(await r.arrayBuffer()));+    }+    let total = 0;+    for (const b of bufs) total += b.length;+    const all = new Uint8Array(total);+    let o = 0;+    for (const b of bufs) { all.set(b, o); o += b.length; }+     const s = document.createElement('script');-    s.src = 'https://wiki.adom.inc/download/adom/alex-nameplate/viewer-1/adom-3d-viewer.min.js';-    s.onload = () => resolve();-    s.onerror = () => reject(new Error('Failed to load the viewer bundle from https://wiki.adom.inc/download/adom/alex-nameplate/viewer-1/adom-3d-viewer.min.js'));+    s.textContent = new TextDecoder('utf-8').decode(all);     document.head.appendChild(s);-  });++    if (!window.Adom3DViewer) throw new Error('viewer bundle ran but exposed no Adom3DViewer');+  })(); }  async function initViewer() {