demo-font-shift-check.txt

# front door r1.3 P3: /demo layout shift under a controlled font delay. Headless Chromium 141 at 412x823 (Lighthouse's mobile size); Google Fonts' stylesheet fetched from Google, each font file answered 800 ms late. Port 8098 serves P2's tip (00fd692f), where /demo still has its own nav and footer; port 8099 serves the P3 tree. The sources are the elements that moved, with their top edge before and after.
8098 /demo CLS 0.1654 [{"value":0.1604,"t":974,"sources":["button.bd-launch 743->741","#text 234->187","p.sub 385->343","p.sub 538->496","p.sub 662->620"]},{"value":0.005,"t":990,"sources":["#text 624->622","#text 187->187","#text 192->187","#text 347->345","#text 500->498"]}]
8099 /demo CLS 0.1578 [{"value":0.1578,"t":1010,"sources":["p.sub 749->706","button.bd-launch 743->741","#text 321->274","p.sub 472->429","p.sub 625->582"]}]