use port 3000 for e2e dev server to avoid buildkite agent port conflict

[michaelfward]

summary

the buildkite agent on K8s e2e pods runs a health check endpoint on port 8080. the e2e test runner starts next dev on the same port, so it either fails to bind or the health check connects to the buildkite agent instead of next.js. the agent returns 200 OK to / (passing the health check) but 404 to everything else, including the example HTML files that save-examples tries to load.

this is why linux e2e has never passed on K8s pods - the dev server was never actually serving pages.

changes

• start dev server on port 3000 instead of 8080 in the test runner
• update health check and PLAYWRIGHT_TEST_BASE_URL to match
• update hardcoded localhost:8080 URLs in test expectations (these will change when examples are re-recorded on the new port)

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Project	Deployment	Actions	Updated (UTC)
devtools	Building	Preview, Comment	Feb 26, 2026 2:49pm

[replay-io]

E2E Tests

Status	Complete ↗︎
Commit	f108292
Results	❌ 5 Failed highlighter: element highlighter works everywhere (Replay 1, Replay 2, Replay 3, Replay 4) inspector-computed-02: Complex computed styles can be viewed (Replay 1, Replay 2, Replay 3, Replay 4) jump-to-code-01: Test basic jumping functionality object_preview-04: Test scope mapping and switching between generated/original sources (Replay 1, Replay 2, Replay 3, Replay 4) stepping-06: Test stepping in async frames and async call stacks ⚠️ 2 Flaky jump-to-code-02: Redux J2C functionality logpoints-11: too-many-points-to-run-analysis UX (Replay 1, Replay 2) ✅ 94 Passed async-stack: should detect async stacks outside the focus window authenticated/comments-01: Test add, edit, and delete comment functionality authenticated/comments-02: Test shared comments and replies (Replay 1, Replay 2) authenticated/comments-03: Comment previews authenticated/logpoints-01: Shared logpoints functionality (Replay 1, Replay 2) authenticated/passport-01: Time travel authenticated/passport-02: Infrared inspection authenticated/passport-03: Swiss army knife authenticated/passport-04: Multiplayer console_async: support console evaluations in async frames console_dock: Should show the correct docking behavior for recordings with video console_errors: Test that errors and warnings from various sources are shown in the console console_eval: support console evaluations console_warp-01: should support warping to console messages console_warp-02: support pausing, warping, stepping and evaluating console messages console-expressions-01: should cache input eager eval and terminal expressions per instance cypress-01: Basic Test Suites panel functionality cypress-02: Test Step timeline behavior cypress-03: Test Step interactions cypress-04: Test Step buttons and menu item cypress-05: Test DOM node preview on user action step hover deleted-recording: Show error message for deleted recording elements-search: Element panel should support basic and advanced search modes fe-1875 :: verify that steps go to the right point in time file-search-01: should search files focus_mode-01: should filter messages as regions based on the active focus mode inspector-computed-01: Basic computed styles can be viewed inspector-elements-01: Basic DOM tree node display inspector-elements-02_node-picker: element picker and iframe behavior inspector-elements-03: Nested node picker and selection behavior inspector-elements-04: Keyboard shortcuts should select the right DOM nodes inspector-elements-05_search: element picker and iframe behavior inspector-rules-01: Basic CSS rules should be viewed inspector-rules-03: Shorthand CSS rules should be viewed logpoints-01: log-points appear in the correct order and allow time warping logpoints-02: conditional log-points logpoints-03: should display event properties in the console logpoints-04: should display exceptions in the console logpoints-05: should auto-complete based on log point location logpoints-06: should be temporarily disabled logpoints-07: should use the correct scope in auto-complete logpoints-08: should support jumping directly to a hit point via the capsule input logpoints-09: should support pending edits logpoints-10: too-many-points-to-find UX logpoints-12: should auto save when removing conditions logpoints-13: Test log point in a sourcemapped file network-01: should filter requests by type and text network-02: should show details for the selected request network-03: should sync and display the current time in relation to the network requests node_console_dock: Should show the correct docking behavior for recordings without video node_console-01: Basic node console behavior node_console-02: uncaught exceptions should show up node_control_flow: catch, finally, generators, and async/await node_logpoint-01: Basic node logpoints node_object_preview: Showing console objects in node node_quick_open_modal-01: Test basic searching functionality node_spawn: Basic subprocess spawning node_stepping-01: Test stepping in async frames and async call stacks node_worker-01: make sure node workers don't cause crashes object_preview-01: expressions in the console after time warping object_preview-02: should allow objects in scope to be inspected object_preview-03: Test previews when switching between frames and stepping object_preview-05: Should support logging objects as values object_preview-06: HTML elements object_preview-07: inspect objects in the console while paused somewhere else object_preview-08: should render ellipsis for collapsed objects with truncated properties playwright-01: Basic Test Suites panel functionality playwright-02: Test Step timeline behavior playwright-03: Test Step interactions playwright-04: Test Step buttons and menu item playwright-05: Test DOM node previews on user action step hover react_devtools-01: Basic RDT behavior react_devtools-02: RDT integrations (Chromium) react_devtools-03: process and display multiple React versions in page react_devtools-04: Component selection is maintained when seeking to a new point redux_devtools: Test Redux DevTools. repaint-01: repaints the screen screen when stepping over code that modifies the DOM repaint-02: repaints on hover repaint-03: repaints on seek repaint-04: prefers nearest (<=) paint when seeking between paints repaint-05: prefers current time if pause creation failed outside of the focus window repaint-06: repaints the screen screen when stepping over code that modifies the DOM resizable-panels-01: Left side Toolbar and Video should be collapsible restart-session: restart debugging session scopes_rerender: Test that scopes are rerendered session-destroyed: errors caused by session failure should bubble to the root source-line-highlights: Test source line highlighting sourcemap_stacktrace: Test that stacktraces are sourcemapped stacking: Element highlighter selects the correct element when they overlap stepping-01: Test basic step-over/back functionality stepping-02: Test fixes for some simple stepping bugs stepping-04: Test stepping in a frame other than the top frame stepping-05: Test stepping in pretty-printed code stepping-07: Test quick stepping using the keyboard