@@ -2,6 +2,12 @@ set -u
 node --import tsx packages/cli/scripts/prepare-process-test-browser.mjs
 export HYPERFRAMES_BROWSER_PATH=$(grep HYPERFRAMES_BROWSER_PATH "$GITHUB_ENV" | tail -1 | cut -d= -f2-)
 cd packages/cli
-echo "--- outside vitest:"
-for gpu in software hardware; do echo "PLAINCLI gpu=$gpu: $(node --import tsx src/wincli.debug.ts $gpu 2>&1 | tr '\n' ' ' | cut -c1-1500)"; done
-npx vitest run src/wincli.debug.test.ts --maxWorkers=1 2>&1 | grep WINCLI
+FX=$RUNNER_TEMP/hang; mkdir -p $FX/compositions
+printf '%s' '<!doctype html><html><body><div data-composition-id="main" data-width="320" data-height="180" data-duration="1"><div data-composition-id="hang" data-composition-src="compositions/hang.html" data-start="0" data-duration="1"></div></div><script>window.__timelines={main:{duration:()=>1,seek:()=>{},pause:()=>{}}};</script></body></html>' > $FX/index.html
+printf '%s' '<template id="hang"><div data-composition-id="hang"><div id="box" style="width:1px;height:1px"></div><script>const el=document.getElementById("box");while(el.offsetWidth<2){el.style.height="1px";}</script></div></template>' > $FX/compositions/hang.html
+hang() { s=$(node -e 'console.log(Date.now())'); timeout 240 node --import tsx src/cli.ts check $FX --json --samples=1 --no-browser-gpu > $RUNNER_TEMP/h.out 2>$RUNNER_TEMP/h.err; c=$?; e=$(node -e 'console.log(Date.now())'); echo "HANGCHECK $1 exit=$c ms=$((e-s)) $(grep -o 'did not finish[^"]*' $RUNNER_TEMP/h.out | head -1)"; }
+t() { npx vitest run src/utils/checkDeadline.process.test.ts --maxWorkers=1 2>&1 | sed 's/\x1b\[[0-9;]*m//g' | grep -E "✓|×|Tests " | sed "s/^/DEADLINE $1 /"; }
+hang pipe; t pipe
+sed -i 's/puppeteer.launch({ ...options, pipe: true,/puppeteer.launch({ ...options, pipe: process.platform !== "win32",/' src/browser/launch.ts
+grep -c 'pipe: process.platform !== "win32"' src/browser/launch.ts
+hang port; t port