From a5f176276c9cfe586f0cdbe078ecc0e1a6e7b46d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois=20Beaufort?= <beaufort.francois@gmail.com>
Date: Thu, 1 Feb 2024 10:32:56 +0100
Subject: [PATCH] Handle cases where SharedWorker is not supported at all

---
 index.html |  1 +
 index.js   | 12 ++++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/index.html b/index.html
index f84bcbb..bbc92f4 100644
--- a/index.html
+++ b/index.html
@@ -216,6 +216,7 @@ <h1><img src="webgpu-notext.svg" class="logo">WebGPU Report <div class="hide-on-
     pointer-events: none;
 }
 #forkongithub a {
+    margin-top: 8px;
     background: #000;
     color: #fff;
     text-decoration: none;
diff --git a/index.js b/index.js
index 73a4b66..ec4c8da 100644
--- a/index.js
+++ b/index.js
@@ -210,7 +210,7 @@ function expandMapLike(obj, sort = true) {
 function setLikeToTableRows(values) {
   return values
     ? expandSetLike(values)
-    : [el('tr', {}, [el('td', {colSpan: 2, textContent: 'not yet implemented by this browser'})])];
+    : [el('tr', {}, [el('td', {colSpan: 2, className: 'nowrap', textContent: 'not yet implemented by this browser'})])];
 }
 
 function mapLikeToTableRows(values, sort = true) {
@@ -435,7 +435,15 @@ async function checkWorkers(workerType) {
     obj[feature] = supported ? success : [fail, {className: 'not-supported'}];
   };
 
-  const worker = new WorkerHelper('worker.js', workerType);
+  let worker;
+  try {
+    worker = new WorkerHelper('worker.js', workerType);
+  } catch(error) {
+    addElemToDocument(el('table', { className: 'worker' }, [
+      el('tbody', {}, setLikeToTableRows(undefined)),
+    ]));
+    return;
+  }
   const {rAF, gpu, adapter, device, context, offscreen: offscreenSupported, twoD } = await worker.getMessage('checkWebGPU', {canvas: offscreenCanvas}, [offscreenCanvas]);
   addSupportsRow('webgpu API', gpu, 'exists', 'n/a');
   if (gpu) {