Incidental difference beyond clipboard behavior: the independently generated real turns show “Worked for 19s” before and “Worked for 35s” after. This is fixture timing, not a change made by the fix.
3/4 matrix rows are captured in their specified mode: R1/R2 in the real app, R3 as the requested panel-state harness. R4 also has a supplementary component-harness pair, so all four iframe contexts have before/after recordings. The real redeemed-guest row remains UNVERIFIED: T3 Connect is unavailable.
Chromium 156.0.0.0, Linux x86_64, headless T3 preview browser on fs-39; 1440 × 900 CSS px, dark, DPR 2, no device emulation, 100% font scaling and browser zoom. Both contexts have the preview browser’s clipboard-write permission grant; iframe sandbox and Permissions Policy remain enabled. Whole-surface PNGs are automatically downsampled by the tool to 1280 × 800; MP4s are 2880 × 1800. Top-page Date/Date.now are fixed to 2026-10-30T08:00:00Z after seeding; the fixture contains no clock. Server and turn timing remain real. Reduced-motion emulation is unavailable in this preview tool.
Identical real published HTML: 7547 bytes; SHA-256 f2bc7f93e2818d1f1910ac1fad06530376b97473bc0c72c8023688ac5c4afbcc. Fresh isolated state on each revision; no live database seed.
What else changed
The page output changes from a Permissions Policy NotAllowedError to copied in every captured context.
Pasting yields clipboard-sentinel-27402 before and exactly echo hello-27402 after. No paste is sent.
The longer inline error makes the real inline frame 92px tall before versus 80px after, moving done below it by 12 CSS px. R2’s closed-dialog final frame inherits that R1 inline state.
In the R4 harness the same 92px-versus-80px content-height difference moves the neutral paste label and textarea by 12 CSS px, including rounded-border antialiasing pixels.
The visible real-turn duration differs: 19s before versus 35s after in R1/R2-final/R3. It is obscured by the dialog backdrop in R2-dialog and absent from the R4 harness.
During recordings the pointer, focus ring, caret, and dialog opening/closing reflect the scripted interactions; exact wall-clock pacing varies slightly. Settled stills blur the paste target and move the pointer to matching blank space.
R1 — Owner inline — REAL APP
Real Codex html_render turn through each revision’s isolated server; identical published HTML.
Chromium 156.0.0.0, Linux x86_64, headless T3 preview browser on fs-39; 1440 × 900 CSS px, dark, DPR 2, no device emulation, 100% font scaling and browser zoom. Both contexts have the preview browser’s clipboard-write permission grant; iframe sandbox and Permissions Policy remain enabled. Whole-surface PNGs are automatically downsampled by the tool to 1280 × 800; MP4s are 2880 × 1800. Top-page Date/Date.now are fixed to 2026-10-30T08:00:00Z after seeding; the fixture contains no clock. Server and turn timing remain real. Reduced-motion emulation is unavailable in this preview tool.
Clipboard reset to clipboard-sentinel-27402. Same click → status → Ctrl+V interaction. Times are seconds after the tool’s recording start.
Same real asset, opened through the actual Open full screen button; a fresh dialog document starts idle.
Chromium 156.0.0.0, Linux x86_64, headless T3 preview browser on fs-39; 1440 × 900 CSS px, dark, DPR 2, no device emulation, 100% font scaling and browser zoom. Both contexts have the preview browser’s clipboard-write permission grant; iframe sandbox and Permissions Policy remain enabled. Whole-surface PNGs are automatically downsampled by the tool to 1280 × 800; MP4s are 2880 × 1800. Top-page Date/Date.now are fixed to 2026-10-30T08:00:00Z after seeding; the fixture contains no clock. Server and turn timing remain real. Reduced-motion emulation is unavailable in this preview tool.
Clipboard reset to clipboard-sentinel-27402. Same click → status → Ctrl+V interaction. Times are seconds after the tool’s recording start.
Existing panel store seeded with the real attachment, exact 7547-byte size, and htmlRender:true. Filename visibly labels HARNESS R3. No production producer of this flag is established.
Chromium 156.0.0.0, Linux x86_64, headless T3 preview browser on fs-39; 1440 × 900 CSS px, dark, DPR 2, no device emulation, 100% font scaling and browser zoom. Both contexts have the preview browser’s clipboard-write permission grant; iframe sandbox and Permissions Policy remain enabled. Whole-surface PNGs are automatically downsampled by the tool to 1280 × 800; MP4s are 2880 × 1800. Top-page Date/Date.now are fixed to 2026-10-30T08:00:00Z after seeding; the fixture contains no clock. Server and turn timing remain real. Reduced-motion emulation is unavailable in this preview tool.
Clipboard reset to clipboard-sentinel-27402. Same click → status → Ctrl+V interaction. Times are seconds after the tool’s recording start.
Actual GuestHtmlRender from each revision, mounted with its real iframe attributes and a measured 80px reference. The unavailable guest URL is replaced by that revision’s real owner asset URL. No guest invite, redemption, session, timeline, HTTPS route, or guest-response CSP is verified.
Chromium 156.0.0.0, Linux x86_64, headless T3 preview browser on fs-39; 1440 × 900 CSS px, dark, DPR 2, no device emulation, 100% font scaling and browser zoom. Both contexts have the preview browser’s clipboard-write permission grant; iframe sandbox and Permissions Policy remain enabled. Whole-surface PNGs are automatically downsampled by the tool to 1280 × 800; MP4s are 2880 × 1800. Top-page Date/Date.now are fixed to 2026-10-30T08:00:00Z after seeding; the fixture contains no clock. Server and turn timing remain real. Reduced-motion emulation is unavailable in this preview tool.
Clipboard reset to clipboard-sentinel-27402. Same click → status → Ctrl+V interaction. Times are seconds after the tool’s recording start.
Accepted stills passed exact pixel equality over two captures at least 500ms apart after fonts and a 500ms resource quiet window. All stills, diffs and video inspection strips were opened and reviewed. Diff0: every nonzero maximum RGB delta amplified to white; DiffT: maximum RGB delta >16/255 in magenta. No alignment or masks.
Unverified
Real R4 guest flow: T3 Connect is unavailable. R4 harness substitutes the real owner asset route; it is not proof of invitation, redemption, guest session, HTTPS, or guest-response CSP. R3 has no established production producer of the explicit flag.
