diff --git a/changelog.d/1267-cctv-session-admission.md b/changelog.d/1267-cctv-session-admission.md
index c331e210d..c331222e7 100644
--- a/changelog.d/1267-cctv-session-admission.md
+++ b/changelog.d/1267-cctv-session-admission.md
@@ -1,2 +1,3 @@
 - Gate CCTV HLS media requests before session work, bind leases to the direct
   peer, and bound per-peer leases across shared sessions (asturksever, #1267).
+- Keep headful CCTV QA rendering active when its window is occluded (asturksever, #1267).
diff --git a/scripts/qa-cctv-v2.mjs b/scripts/qa-cctv-v2.mjs
index 88e0a5a2c..a6abdffa3 100644
--- a/scripts/qa-cctv-v2.mjs
+++ b/scripts/qa-cctv-v2.mjs
@@ -454,6 +454,7 @@ async function main() {
       ...(HEADFUL ? [] : ['--use-gl=angle', '--use-angle=swiftshader']),
       '--disable-dev-shm-usage',
       '--disable-web-security',
+      '--disable-backgrounding-occluded-windows',
       '--disable-background-timer-throttling',
       '--disable-renderer-backgrounding',
       '--window-size=1280,800',