AI Overlay for Blackboard Quizzes with Respondus on Mac
Blackboard Learn (now Anthology Blackboard) is one of the three major US LMSes alongside Canvas and Moodle. Many Blackboard courses use the LockDown Browser plugin to deliver tests under proctored conditions on Mac.
A Blackboard test set to "Require Respondus LockDown Browser" appears as a regular link until you click it; the link launches Respondus, which loads the Blackboard quiz inside its locked Chromium environment. The capture stack is identical to Canvas + Respondus and to standalone LockDown Browser exams: macOS ScreenCaptureKit on 12.3+, with per-window privacy enforced by the OS. LDBypass' overlay window has the flag set, so any recording or screen share inside Respondus contains everything except the overlay region.
Key points
- Anthology Blackboard ships LockDown Browser as a "Building Block" plugin; the integration is server-side, not client-side.
- Blackboard Ultra and Original UIs both support Respondus; the technical proctor surface is the same.
- Some Blackboard tests pair LockDown Browser with Respondus Monitor; that adds recording but does not change capture privacy.
- In-class tests delivered via Blackboard sometimes use the campus computer lab; the overlay only runs on your personal Mac, not lab machines.
How it works
┌── macOS host ─────────────────────────────────┐ │ ┌── proctor desktop app ───────┐ │ │ │ Calls ScreenCaptureKit / │ ← misses │ │ │ CGWindowListCreateImage │ flagged │ │ └──────────────────────────────┘ windows │ │ │ │ ┌── LDBypass overlay window ───┐ │ │ │ sharingType = .none │ ← invisible │ │ └──────────────────────────────┘ to capture│ └───────────────────────────────────────────────┘
Compatibility on Mac
| macOS 14 Sonoma+ | Yes (required for window-privacy API) | ✓ |
| Apple Silicon (M1/M2/M3/M4) | Native arm64 build | ✓ |
| Intel Macs (2019+) | Universal binary supported | ✓ |
| Blackboard Learn (Original) | LMS only, proctor is LockDown Browser | ✓ |
| Blackboard Ultra | Same plugin, same capture stack | ✓ |
Common questions
Does Anthology Blackboard have its own proctor I should worry about?
No. Blackboard's test engine just records answers. The proctoring layer comes from Respondus when enabled, or from a separate tool like Honorlock.
What if my Blackboard quiz uses Honorlock instead of Respondus?
Honorlock is a Chrome extension. The overlay is invisible to Honorlock's screen capture too. See our dedicated Honorlock guide for specifics.
Can I tell my professor I had a "Mac issue" if Respondus crashes?
That is a policy and instructor question, not a technical one. The overlay does not cause Respondus crashes; it runs in a separate process tree.