After a hidden interval that added persisted messages (post-turn bg-review
writes, sibling-tab writes, the just-finished main turn flushing), switching
the tab back caused refreshActiveSessionIfExternallyUpdated('visible'|'focus')
to hit remoteCount !== localCount and call loadSession(sid, {force:true}),
which synchronously did S.messages = [] before awaiting the metadata +
messages fetches. The visible result was the entire conversation transcript
blanking for the round-trip and reappearing — '对话突然消失，重刷才回来'.
sessions.js itself warns about this 'disappear and reappear' tradeoff at the
top of the remoteCount/remoteLast guard, but only short-circuits the
metadata-only branch (#5061). #5122's 4-probe staged reconnect covers a
different path (SSE error with ready_state=2 on a visible tab) and does not
apply when the SSE error arrives while visibility_state='hidden' — that
bottoms out through _deferStreamErrorIfPageHidden before the reconnect block
ever runs.
Fix:
- refreshActiveSessionIfExternallyUpdated maps the visibility/focus recovery
reasons ({visible, focus}) to a new keepStaleUntilLoaded option, forwarded
to loadSession. The post-stream idle reconcile and the poll/external paths
keep their existing behaviour.
- loadSession ANDs opts.keepStaleUntilLoaded with sameSessionForceReload (so
cross-session switches still clear synchronously — leaving a prior
session's transcript on screen during a navigation is the original bug
the clear was written for) and, on that path, skips the synchronous
S.messages/S.toolCalls/_messagesTruncated/_oldestIdx clear. The new
transcript is SWAPPED into S.messages by _ensureMessagesLoaded(sid,
{force:true}), so the user sees old DOM directly replaced by new DOM in a
single render frame.
- _ensureMessagesLoaded grows an opts.force escape hatch so its 'messages
already populated' early-return cannot skip the swap when stale messages
are still in place.
Verified live on a source 8701 build:
- before: minHtmlObserved 65874, minKidsObserved 11 — 372 samples at 16ms,
DOM html length NEVER dipped below the pre-call value during the reload.
- loadSession was called with force:true keepStale:true reason:'visible',
outcome 'reloaded', sMsgs 21 → 1037, after kids 11 → 134 (single-frame
swap).
Tests:
- tests/test_issue5177_hidden_tab_blank_gap.py (new, 7 cases): source-locks
the keep-stale guard shape, the recovery-reason map, the
_ensureMessagesLoaded opts.force escape hatch, and that the synchronous
clear is wrapped in if(!_keepStaleUntilLoaded).
- Updated the two existing source-lock tests whose anchor strings included
the loadSession call signature
(tests/test_webui_external_refresh_frontend.py +
tests/test_tars_scroll_reset_regressions.py) to match the new
loadSession(... keepStaleUntilLoaded:_keepStaleUntilLoaded) form. No
behavioural assertions changed.
Local: node --check static/sessions.js OK. 122 passed across
test_issue5177_hidden_tab_blank_gap.py + the full adjacent set
(external-refresh / journal-frontend / scroll-reset / reconnect-chronology /
inflight-stream-reuse / sse-error-multi-probe / issue4295 / issue4856).
#4584 (fixes#4295): scroll re-pin requires deliberate downward intent (deltaY<-30 unpin
threshold, re-pin only if not user-unpinned OR bottomDistance<=80, reset counter) so reading
mid-stream isn't hijacked back to bottom. ui.js only + 5 scroll-regression tests (4 existing
assertions adjusted, all green; new test_issue4295_scroll_pin_reentry).
#4583 (fixes#4553): mobile transcript overflow-x:hidden + max-width:100% + word-break so wide
content can't pan sideways. style.css only + own test. Disjoint files. 32 scroll-family tests pass.
Co-authored-by: nesquena-hermes <agent@nesquena-hermes>
Co-authored-by: rodboev <rodboev@users.noreply.github.com>
#4124: treat preserved snapshot bottom>250px as active reader (restore before follow-to-bottom),
re-mark restored mid-answer as unpinned, scope _resetScrollDirectionTracker to real session
switches only. Re-anchored test_preserve_scroll_restores_unpinned_viewport + test_render_messages_
preserve_scroll to the new readerAwayFromBottom-guarded early-return (was pinning the old exact line).
CHANGELOG stamped v0.51.390 (NC).
scrollToBottom now calls _settleMessageScrollToBottom(false, true); renderMessages
captures scrollSnapshot when (preserveScroll || (!_autoScrollFollow && _messageUserUnpinned)).
Updated the 4 change-detector assertions in test_tars_scroll_reset_regressions.py +
test_issue1690_scroll_completion.py to the new strings; behavioral intent unchanged.
The 2 failing assertions pinned the removed implementation (const passes=[0,16,80,180]
setTimeout fan-out + _settleMessageScrollToBottom(true) in scrollToBottom). Updated to
assert the new behavior contract: ResizeObserver on #msgInner + 2s static fallback +
force=false so the observer runs. Behavioral intent (settle survives late markdown
growth; sync write before settle scheduling) preserved.
Two scroll-state bugs cause the viewport to snap to the bottom after
streaming completes, even when the user has scrolled up to read:
1. _scrollAfterMessageRender (ui.js): when preserveScroll=true and
_scrollPinned=true (re-set by the 250px near-bottom hysteresis),
_followMessagesAfterDomReplace() calls scrollToBottom(), overriding
the user's position. Added !_messageUserUnpinned guard so explicitly
scrolled-up users get their snapshot restored instead.
2. _finishDone (messages.js): the explicit scrollToBottom() at L3302
fires when shouldFollowOnDone is true, but that flag only checks a
120px near-bottom threshold. Added _isMessagePaneNearBottom(250)
gate so users reading 250px+ above bottom keep their position.
Also adds a new 'auto_scroll_follow' setting (default: off) that gates
scrollIfPinned() and _shouldFollowMessagesOnDomReplace(). When disabled,
the viewport never auto-scrolls during streaming — the user controls
scroll position manually and uses the ↓ button to jump to bottom.
7-file setting-add pattern applied:
- api/config.py: _SETTINGS_DEFAULTS + _SETTINGS_BOOL_KEYS
- static/boot.js: both init paths
- static/ui.js: scrollIfPinned() + _shouldFollowMessagesOnDomReplace()
- static/index.html: checkbox in appearance settings
- static/i18n.js: en + zh-CN translations
- static/panels.js: payload, autosave, populate, full save
- messages.js: no additional changes (gated via _shouldFollowMessagesOnDomReplace)
Tests updated: test_tars_scroll_reset_regressions, test_issue1690,
test_issue3545. All 116 scroll-related tests pass.
* fix(streaming): show new-message cue when preserving scroll position (#3545)
# Conflicts:
# static/ui.js
# tests/test_issue1690_scroll_completion.py
# tests/test_tars_scroll_reset_regressions.py
* i18n: add missing Polish (pl) translation for session_new_message keys
The PR added session_new_message / session_new_message_label to 12 of 13
locales; Polish was missing both, which fails the per-locale parity test.
Co-authored-by: rodboev <rodboev@users.noreply.github.com>
* fix(streaming): keep forced follow path for pinned users in preserve-scroll branch
Codex CORE catch: the PR's preserve-scroll branch used
'if(_scrollPinned) scrollIfPinned()' which skips the synchronous bottom
write unless distance>500 and can have its delayed settles cancelled by the
DOM-rebuild scroll event — leaving a pinned reader a few lines above the
settled final response. Restore master's _followMessagesAfterDomReplace()
forced-scrollToBottom() path for pinned/near-bottom users; only genuinely
scrolled-up (unpinned, not near bottom) users restore their viewport and
get the new-message cue. Updated the 3 structure-pinning tests to assert the
corrected (safer) shape while preserving their behavioral intent.
Co-authored-by: rodboev <rodboev@users.noreply.github.com>
* Release v0.51.334 — Release KX (new-message cue when scrolled up, #3631)
New-message cue on the jump-to-bottom button when the user has scrolled up
during a live turn (#3545/#3631, @rodboev). Deep-reviewed (Opus+Codex);
maintainer fixes during re-gate: (1) restored master's forced follow path
for pinned/near-bottom users (Codex CORE: scrollIfPinned could leave a pinned
reader short of the settled response) + updated 3 structure-pinning tests to
the corrected shape; (2) added missing Polish (pl) i18n keys (PR had 12/13).
Full suite 8308, ESLint/scope-undef CLEAN, Opus SHIP-safe, Codex SAFE-TO-SHIP.
Co-authored-by: rodboev <rodboev@users.noreply.github.com>
---------
Co-authored-by: Rod Boev <rod.boev@gmail.com>
Co-authored-by: Hermes Agent <hermes-agent@nesquena-hermes.local>
Co-authored-by: rodboev <rodboev@users.noreply.github.com>
* Harden interrupted recovery control filtering
* Redesign live-to-final assistant replies
* Fix live activity anchor test fixture
* Fix CI lint issues for live reply tests
* Strengthen live progress prompt contract
* Recover PR #3401 refresh on origin/master
* Repair live-to-final refresh regressions
* Fix live worklog refresh regressions
* Show live footer timer on initial stream start
* Restore live stream shell after reload
* Preserve per-frame live SSE replay cursors
* Preserve reasoning as Worklog Thinking cards
* Quiet Worklog Thinking card styling
* Align Worklog Thinking card styling
* Scope live Worklog Thinking cards by segment
* Suppress exact duplicate settled Thinking
* Close#3401 merge review test gaps
* fix(#3401): resolve 4 deep-review regressions (inline-think, reconnect-dup, neon skin, busy-gate worklog)
Deep review (Codex diff-vs-master + live-browser drive) of the live-to-final refactor
surfaced 4 regressions vs master that the rewritten suite no longer guarded:
1. Inline <think>…</think>answer reasoning vanished — _assistantReasoningPayloadText
used $-anchored regexes so a leading think block + visible answer extracted nothing
and the Thinking card never rendered. Removed the 3 $ anchors to match the
(non-anchored) display stripper. Live: inline-think thinking-only turn now renders.
2. (CORE) reconnect/reload duplicated the live reply — _rememberRunJournalCursor advanced
a closure-local seq but never wrote INFLIGHT[activeSid].lastRunJournalSeq, so a reload
replayed the journal from after_seq=0 over restored lastAssistantText. Now mirrors the
cursor onto INFLIGHT + schedules a throttled persist.
3. Neon skin silently broke — PR deleted the :root[data-skin="neon"] CSS but left Neon in
the picker. Restored the neon CSS block from master.
4. Settled tool-worklog rebuild gated purely on !S.busy — dropped every prior settled
turn's worklog when renderMessages re-ran during an active stream (switch-back to an
in-progress session). Restored master's !S.busy || (S.toolCalls && S.toolCalls.length).
Live: busy re-render now preserves tool cards (4→4, was 4→0).
Live-verified all 4 + confirmed #3709/#3592 invariants still hold (1 thinking card, none
below footer; distinct siblings preserved). + tests/test_issue3401_deep_review_fixes.py (7).
* test(#3401): realign 3 stale source-shape assertions to the deep-review fixes
Fix commit changed two source literals that existing stage tests scanned for:
- test_live_activity_timeline.py (x2): split anchor 'if(!S.busy){' → the restored
'if(!S.busy || (S.toolCalls&&S.toolCalls.length)){' guard (fix 4).
- test_run_journal_frontend_static.py: 'after_seq=0' not in source — fix 2's comment
contained that literal; rephrased the comment to 'the zero floor (after_seq of 0)'.
Intent of all three assertions unchanged; only the matched string updated. No code
behavior change.
* docs(changelog): v0.51.294 — Release JJ (stage-3401, #3401 live-to-final redesign)
---------
Co-authored-by: Frank Song <franksong2702@gmail.com>
Co-authored-by: Nathan-Hermes <nesquena-hermes@users.noreply.github.com>
Co-authored-by: nesquena-hermes <[email protected]>
Supersedes the v0.51.199 proximity-re-pin (#3330) and the #3250 upward-intent
timeout with a sticky-unpin model (ChatGPT/Claude/Codex behavior): scroll up =
stay put until you return to the bottom or click the scroll-to-bottom control.
Reconciled against the shipped #3330 code: removed the now-dead
_recentMessageUpwardIntent reference from the #3319 rAF retry, kept the
load-time -Infinity intent-init fix, kept the pinned-only >500 catch-up.
Co-authored-by: pamnard <pamnard@users.noreply.github.com>
Keep explicit bottom pins stable across late layout growth and make clicking the already-active sidebar session a no-op before loadSession mutates state. Update scroll regression tests for the delayed settle path.
allenliang2022