STORY A/B DEMO · CAFÉ ENGLISH
A drink, your way.
Practice with the same A/B lesson screen, then choose what happens next.
Checking sign-in…
Uses the same main Settings, STT engine, TTS, Start page, microphone, subtitles and learning controls as A/B lessons. Administrator-only test options remain administrator-only. Normal access checks and paid Server STT limits still apply.
Fresh R2 requests use a new video URL to avoid reusing this browser's same-URL HTTP cache. They use more network data and are not the normal playback setting.
Checking story data…
Off by default. Changing the demo, role or source turns it off again. Choices appear after a scene completes, as two buttons stacked vertically. Learning History is saved only after the entire story route completes.
Animation
Selected source: Cloudflare R2 (test)
The poster is only a preview. Video playback and speech practice start on the normal A/B lesson page. R2-selected videos never silently switch to bundled files.
Source verification (administrator)
Selected preview URL:
The lesson reports the actual video source. Repeated R2 playback may use that R2 URL's browser cache; it cannot substitute an app-bundled video.