Check native sliding sync support against an unstable feature flag #12498
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The `OPTIONS` approach from #12492 doesn't work because Synapse *always* responds with 204 (success) to `OPTIONS` requests, as described here: element-hq/synapse#17153 We further can't use `HEAD` because it's not part of the allowed CORS methods, meaning the browser will mask the exact status code and error message from us, and the proxy hangs on the request anyways: matrix-org/sliding-sync#429 To avoid these problems, we instead search for an unstable feature flag to be exposed by the server. Presence of this flag denotes native support. See https://github.com/matrix-org/matrix-spec-proposals/pull/3575/files#r1588877046 for details. Implementations which support sliding sync natively will need to update to support this new unstable feature flag usage.
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matrix-org/matrix-spec-proposals#4138 would help with the |
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this matrix-react-sdk PR (and the cited sliding sync MSC) says that they will intend on checking sliding sync support from this unstable feature flag at /versions until the CORS header stuff is specced matrix-org/matrix-react-sdk#12498 Signed-off-by: strawberry <strawberry@puppygock.gay>
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this matrix-react-sdk PR (and the cited sliding sync MSC) says that they will intend on checking sliding sync support from this unstable feature flag at /versions until the CORS header stuff is specced matrix-org/matrix-react-sdk#12498 Signed-off-by: strawberry <strawberry@puppygock.gay>
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this matrix-react-sdk PR (and the cited sliding sync MSC) says that they will intend on checking sliding sync support from this unstable feature flag at /versions until the CORS header stuff is specced matrix-org/matrix-react-sdk#12498 Signed-off-by: strawberry <strawberry@puppygock.gay>
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this matrix-react-sdk PR (and the cited sliding sync MSC) says that they will intend on checking sliding sync support from this unstable feature flag at /versions until the CORS header stuff is specced matrix-org/matrix-react-sdk#12498 Signed-off-by: strawberry <strawberry@puppygock.gay>
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this matrix-react-sdk PR (and the cited sliding sync MSC) says that they will intend on checking sliding sync support from this unstable feature flag at /versions until the CORS header stuff is specced matrix-org/matrix-react-sdk#12498 Signed-off-by: strawberry <strawberry@puppygock.gay>
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this matrix-react-sdk PR (and the cited sliding sync MSC) says that they will intend on checking sliding sync support from this unstable feature flag at /versions until the CORS header stuff is specced matrix-org/matrix-react-sdk#12498 Signed-off-by: strawberry <strawberry@puppygock.gay>
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Changes in [1.11.69](https://github.com/element-hq/element-web/releases/tag/v1.11.69) (2024-06-18) ================================================================================================== ## ✨ Features * Change avatar setting component to use a menu ([#12585](matrix-org/matrix-react-sdk#12585)). Contributed by @dbkr. * New user profile UI in User Settings ([#12548](matrix-org/matrix-react-sdk#12548)). Contributed by @dbkr. * MSC4108 support OIDC QR code login ([#12370](matrix-org/matrix-react-sdk#12370)). Contributed by @t3chguy. ## 🐛 Bug Fixes * Fix image upload preview size ([#12612](matrix-org/matrix-react-sdk#12612)). Contributed by @RiotRobot. * Fix screen sharing in recent Chrome (matrix-org/matrix-js-sdk#4243). * Fix roving tab index crash `compareDocumentPosition` ([#12594](matrix-org/matrix-react-sdk#12594)). Contributed by @t3chguy. * Keep dialog glass border on narrow screens ([#12591](matrix-org/matrix-react-sdk#12591)). Contributed by @dbkr. * Add missing a11y label to dismiss onboarding button in room list ([#12587](matrix-org/matrix-react-sdk#12587)). Contributed by @t3chguy. * Add hover / active state on avatar setting upload button ([#12590](matrix-org/matrix-react-sdk#12590)). Contributed by @dbkr. * Fix EditInPlace button styles ([#12589](matrix-org/matrix-react-sdk#12589)). Contributed by @dbkr. * Fix incorrect assumptions about required fields in /search response ([#12575](matrix-org/matrix-react-sdk#12575)). Contributed by @t3chguy. * Fix display of no avatar in avatar setting controls ([#12558](matrix-org/matrix-react-sdk#12558)). Contributed by @dbkr. * Element-R: pass pickleKey in as raw key for indexeddb encryption ([#12543](matrix-org/matrix-react-sdk#12543)). Contributed by @richvdh. Changes in [1.11.68](https://github.com/element-hq/element-web/releases/tag/v1.11.68) (2024-06-04) ================================================================================================== ## ✨ Features * Tooltip: Improve accessibility for context menus ([#12462](matrix-org/matrix-react-sdk#12462)). Contributed by @florianduros. * Tooltip: Improve accessibility of space panel ([#12525](matrix-org/matrix-react-sdk#12525)). Contributed by @florianduros. ## 🐛 Bug Fixes * Close the release announcement when a dialog is opened ([#12559](matrix-org/matrix-react-sdk#12559)). Contributed by @florianduros. * Tooltip: close field tooltip when ESC is pressed ([#12553](matrix-org/matrix-react-sdk#12553)). Contributed by @florianduros. * Fix tabbedview breakpoint width ([#12556](matrix-org/matrix-react-sdk#12556)). Contributed by @dbkr. * Fix E2E icon display in room header ([#12545](matrix-org/matrix-react-sdk#12545)). Contributed by @florianduros. * Tooltip: Improve placement for space settings ([#12541](matrix-org/matrix-react-sdk#12541)). Contributed by @florianduros. * Fix deformed avatar in a call in a narrow timeline ([#12538](matrix-org/matrix-react-sdk#12538)). Contributed by @florianduros. * Shown own sent state indicator even when showReadReceipts is disabled ([#12540](matrix-org/matrix-react-sdk#12540)). Contributed by @t3chguy. * Ensure we do not fire the verification mismatch modal multiple times ([#12526](matrix-org/matrix-react-sdk#12526)). Contributed by @t3chguy. * Fix avatar in chat export ([#12537](matrix-org/matrix-react-sdk#12537)). Contributed by @florianduros. * Use `*` for italics as it doesn't break when used mid-word ([#12523](matrix-org/matrix-react-sdk#12523)). Contributed by @t3chguy. Changes in [1.11.67](https://github.com/element-hq/element-web/releases/tag/v1.11.67) (2024-05-22) ================================================================================================== ## ✨ Features * Tooltip: Improve the accessibility of the composer and the rich text editor ([#12459](matrix-org/matrix-react-sdk#12459)). Contributed by @florianduros. * Allow explicit configuration of OIDC dynamic registration metadata ([#12514](matrix-org/matrix-react-sdk#12514)). Contributed by @t3chguy. * Tooltip: improve accessibility for messages ([#12487](matrix-org/matrix-react-sdk#12487)). Contributed by @florianduros. * Collapse UserSettings tabs to just icons on narrow screens ([#12505](matrix-org/matrix-react-sdk#12505)). Contributed by @dbkr. * Add room topic to right panel room info ([#12503](matrix-org/matrix-react-sdk#12503)). Contributed by @t3chguy. * OIDC: pass `id_token` via `id_token_hint` on Manage Account interaction ([#12499](matrix-org/matrix-react-sdk#12499)). Contributed by @t3chguy. * Tooltip: improve accessibility in room ([#12493](matrix-org/matrix-react-sdk#12493)). Contributed by @florianduros. * Tooltip: improve accessibility for call and voice messages ([#12489](matrix-org/matrix-react-sdk#12489)). Contributed by @florianduros. * Move the active tab in user settings to the dialog title ([#12481](matrix-org/matrix-react-sdk#12481)). Contributed by @dbkr. * Tooltip: improve accessibility of spaces ([#12497](matrix-org/matrix-react-sdk#12497)). Contributed by @florianduros. * Tooltip: improve accessibility of the right panel ([#12490](matrix-org/matrix-react-sdk#12490)). Contributed by @florianduros. * MSC3575 (Sliding Sync) add well-known proxy support ([#12307](matrix-org/matrix-react-sdk#12307)). Contributed by @EdGeraghty. ## 🐛 Bug Fixes * Reuse single PlaybackWorker between Playback instances ([#12520](matrix-org/matrix-react-sdk#12520)). Contributed by @t3chguy. * Fix well-known lookup for sliding sync labs check ([#12519](matrix-org/matrix-react-sdk#12519)). Contributed by @t3chguy. * Fix `element-desktop-ssoid being` included in OIDC Authorization call ([#12495](matrix-org/matrix-react-sdk#12495)). Contributed by @t3chguy. * Fix beta notifications reconciliation for intentional mentions push rules ([#12510](matrix-org/matrix-react-sdk#12510)). Contributed by @t3chguy. * fix avatar stretched on 1:1 call ([#12494](matrix-org/matrix-react-sdk#12494)). Contributed by @I-lander. * Check native sliding sync support against an unstable feature flag ([#12498](matrix-org/matrix-react-sdk#12498)). Contributed by @turt2live. * Use OPTIONS for sliding sync detection poke ([#12492](matrix-org/matrix-react-sdk#12492)). Contributed by @turt2live. * TAC: hide tooltip when the release announcement is displayed ([#12472](matrix-org/matrix-react-sdk#12472)). Contributed by @florianduros. Changes in [1.11.66](https://github.com/element-hq/element-web/releases/tag/v1.11.66) (2024-05-07) ================================================================================================== ## ✨ Features * Use a different error message for UTDs when you weren't in the room. ([#12453](matrix-org/matrix-react-sdk#12453)). Contributed by @uhoreg. * Take the Threads Activity Centre out of labs ([#12439](matrix-org/matrix-react-sdk#12439)). Contributed by @dbkr. * Expected UTDs: use a different message for UTDs sent before login ([#12391](matrix-org/matrix-react-sdk#12391)). Contributed by @richvdh. * Add `Tooltip` to `AccessibleButton` ([#12443](matrix-org/matrix-react-sdk#12443)). Contributed by @florianduros. * Add analytics to activity toggles ([#12418](matrix-org/matrix-react-sdk#12418)). Contributed by @dbkr. * Decrypt events in reverse order without copying the array ([#12445](matrix-org/matrix-react-sdk#12445)). Contributed by @Johennes. * Use new compound tooltip ([#12416](matrix-org/matrix-react-sdk#12416)). Contributed by @florianduros. * Expected UTDs: report a different Posthog code ([#12389](matrix-org/matrix-react-sdk#12389)). Contributed by @richvdh. ## 🐛 Bug Fixes * TAC: Fix accessibility issue when the Release announcement is displayed ([#12484](matrix-org/matrix-react-sdk#12484)). Contributed by @RiotRobot. * TAC: Close Release Announcement when TAC button is clicked ([#12485](matrix-org/matrix-react-sdk#12485)). Contributed by @florianduros. * MenuItem: fix caption usage ([#12455](matrix-org/matrix-react-sdk#12455)). Contributed by @florianduros. * Show the local echo in previews ([#12451](matrix-org/matrix-react-sdk#12451)). Contributed by @langleyd. * Fixed the drag and drop of X #27186 ([#12450](matrix-org/matrix-react-sdk#12450)). Contributed by @asimdelvi. * Move the TAC to above the button ([#12438](matrix-org/matrix-react-sdk#12438)). Contributed by @dbkr. * Use the same logic in previews as the timeline to hide events that should be hidden ([#12434](matrix-org/matrix-react-sdk#12434)). Contributed by @langleyd. * Fix selector so maths support doesn't mangle divs ([#12433](matrix-org/matrix-react-sdk#12433)). Contributed by @uhoreg.
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The
OPTIONSapproach from #12492 doesn't work because Synapse always responds with 204 (success) toOPTIONSrequests, as described here: element-hq/synapse#17153We further can't use
HEADbecause it's not part of the allowed CORS methods, meaning the browser will mask the exact status code and error message from us, and the proxy hangs on the request anyways: matrix-org/sliding-sync#429To avoid these problems, we instead search for an unstable feature flag to be exposed by the server. Presence of this flag denotes native support. See https://github.com/matrix-org/matrix-spec-proposals/pull/3575/files#r1588877046 for details.
Implementations which support sliding sync natively will need to update to support this new unstable feature flag usage.
Checklist
public/exportedsymbols have accurate TSDoc documentation.