From f8e7bd56647b86b8e4e9429f2a6860921c32228a Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@codecow.com>
Date: Sun, 26 Jul 2026 02:23:31 -0700
Subject: [PATCH] Only run self-check once per API per page load.

---
 index.html | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/index.html b/index.html
index 468c7ac..bdffb28 100644
--- a/index.html
+++ b/index.html
@@ -31,6 +31,13 @@ SPDX-License-Identifier: GPL-3.0-or-later
 			document.getElementById('status').textContent = `READY`
 		}
 
+		const selfChecked = {
+			webgpu: false,
+			webgl: false,
+			wasm: false,
+			cpu: false
+		}
+
 		const logger = new Logger()
 
 		const glSize = (canvas => {
@@ -105,7 +112,8 @@ SPDX-License-Identifier: GPL-3.0-or-later
 		 * @param {string} api
 		 */
 		async function selfCheck (api) {
-			document.getElementById('status').textContent = `RUNNING SELF-CHECK`
+			if (selfChecked[api]) return
+			document.getElementById('status').textContent = `RUNNING SELF-CHECK: ${api.toUpperCase()}`
 			logger.log(`%cNanoPow`, 'color:green', 'Checking validation against known values')
 			const options = { api, debug: true }
 			// Generate once on load to compile shaders and initialize buffers
@@ -195,7 +203,9 @@ SPDX-License-Identifier: GPL-3.0-or-later
 				expect.push(isValid)
 			}
 
-			if (!expect.every(result => result)) {
+			if (expect.every(result => result)) {
+				selfChecked[api] = true
+			} else {
 				document.getElementById('status').textContent = `FAILED TO VALIDATE KNOWN VALUES, CHECK CONSOLE`
 				throw new Error(`Validation is not working`)
 			}
-- 
2.52.0