diff --git a/tools/desktop-boot-check.ts b/tools/desktop-boot-check.ts
index d17deac..bb3843d 100644
--- a/tools/desktop-boot-check.ts
+++ b/tools/desktop-boot-check.ts
@@ -236,8 +236,10 @@ interface CaseResult { name: string; ok: boolean; problems: string[]; visited: n
  *  going on: the native confirm dialog after it is what each case checks. */
 async function newPage(ctx: { newPage(): Promise<import('playwright').Page> }): Promise<import('playwright').Page> {
   const page = await ctx.newPage();
-  await page.addLocatorHandler(page.locator('.ds-scrim:has(.dr-cmd)'), async () => {
-    await page.locator('.ds-scrim:has(.dr-cmd) .btn-primary').click();
+  // a person reads the preview and presses Continue, also while the check only waits (no action of its own to block)
+  await page.addInitScript(() => {
+    const go = () => { const b = document.querySelector<HTMLButtonElement>('.ds-scrim:has(.dr-cmd) .btn-primary'); if (b) b.click(); };
+    new MutationObserver(go).observe(document, { childList: true, subtree: true });
   });
   return page;
 }