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## Thinking Path > - Paperclip orchestrates AI agents for zero-human companies > - Every run emits a streaming log that the web UI polls so humans can watch what the agent is doing > - Log responses go out without explicit cache directives, so Express adds an ETag > - If the first poll lands before any bytes have been written, the browser caches the empty / partial snapshot and keeps getting `304 Not Modified` on every subsequent poll > - The transcript pane then stays stuck on "Waiting for transcript…" even after the log has plenty of content > - This pull request sets `Cache-Control: no-cache, no-store` on both run-log endpoints so the conditional-request path is defeated ## What Changed - `server/src/routes/agents.ts` — `GET /heartbeat-runs/:runId/log` now sets `Cache-Control: no-cache, no-store` on the response. - Same change applied to `GET /workspace-operations/:operationId/log` (same structure, same bug). ## Verification - Reproduction: start a long-running agent, watch the transcript pane. Before the fix, open devtools and observe `304 Not Modified` on each poll after the initial 200 with an empty body; the UI never updates. After the fix, each poll is a 200 with fresh bytes. - Existing tests pass. ## Risks Low. Cache headers only affect whether the browser revalidates; the response body is unchanged. No API surface change. ## Model Used Claude Opus 4.6 (1M context), extended thinking mode. ## Checklist - [x] Thinking path traces from project context to this change - [x] Model used specified - [x] Tests run locally and pass - [x] CI green - [x] Greptile review addressed |
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