Build: Remove unused JXL WASM module from vips worker#76639
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WordPress Core does not currently support JXL images - it is not in CLIENT_SIDE_SUPPORTED_MIME_TYPES. Removing the unused vips-jxl.wasm import reduces the worker bundle from 16.1 MB to 13.1 MB (3.0 MB / 18%). JXL support can be trivially re-added by restoring the import and adding 'vips-jxl.wasm' back to the dynamicLibraries array when Core adds JXL support. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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The JXL test assertion is no longer valid since vips-jxl.wasm was removed from the bundle. Also lower the size threshold from 10MB to 5MB. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
adamsilverstein
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@adamziel This change gains us another 18%, I still want to do some manual testing to make sure everything works as expected (it should). We don't currently support JXL anyway and the feature only aims for core parity so far (other than better jpeg compression). If we decide to add JXL support in the future when more browsers support it, we can decide to re-add this later. |
This was referenced Mar 18, 2026
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Size Change: -1.1 MB (-12.58%) 👏 Total Size: 7.65 MB
ℹ️ View Unchanged
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Flaky tests detected in 72b88ef. 🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/23253012972
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Package size LGTM BeforeAfterWhen uploading in the block editor I'm getting a lot of errors in the resizeCropItem action, for all types (GIF, AVIF, WEBP, JPG). It's kinda random. Some files (very small ones) don't trigger it. Output of the error and current item{
"error": {
"message": "Failed to fetch dynamically imported module: http://localhost:8888/wp-content/plugins/gutenberg/build/modules/vips/worker.js?ver=aff5e5c5b28ae6b73aaa",
"stack": "TypeError: Failed to fetch dynamically imported module: http://localhost:8888/wp-content/plugins/gutenberg/build/modules/vips/worker.js?ver=aff5e5c5b28ae6b73aaa"
},
"item": {
"id": "4d977c90-0a97-4e30-b1d8-3b3db8776b3b",
"batchId": "8304ebd3-e7cf-499a-a159-fae6452ce43f",
"status": "PROCESSING",
"sourceFile": {},
"file": {},
"additionalData": {
"post": 290,
"image_size": "medium",
"convert_format": false
},
"parentId": "0e248af7-3210-4d31-a877-b875b76ef256",
"operations": [
[
"RESIZE_CROP",
{
"resize": {
"width": 300,
"height": 300,
"crop": false,
"name": "medium"
}
}
],
"UPLOAD"
],
"abortController": {},
"currentOperation": "RESIZE_CROP"
}
}
This is also happening on trunk, so I don't think it's a blocker for this PR to land if folks are happy with ti. |
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Currently investigating this claim:
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Member
Tentative fix: |
andrewserong
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Mar 19, 2026
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This is testing well for me:
✅ JPEGs are doing client-side processing as expected and I see sideload requests
✅ An avif file I found also does client-side processing as expected and sideloaded requests
✅ HEIC files are uploaded server-side as that was recently changed
The filesize reduction here looks really promising, too.
Keen to hear what other folks think, too, if there are any concerns, but this LGTM!
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Co-authored-by: adamsilverstein <[email protected]> Co-authored-by: andrewserong <[email protected]> Co-authored-by: ramonjd <[email protected]>
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I just cherry-picked this PR to the wp/7.0 branch to get it included in the next release: 7a4db80 |
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This updates the pinned hash from the `gutenberg` from `8c78d87453509661a9f28f978ba2c242d515563b` to `487a096a9782ba6110a7686d7b4b2d0c55ed1b06`. The following changes are included: - Disables anchor support for the Page Break block. (WordPress/gutenberg#76434) - WP Admin: Update Connectors screen footer text for consistency. (WordPress/gutenberg#76382) - E2E Tests: Add coverage for AI plugin callout banner on Connectors page (WordPress/gutenberg#76432) - Update sync docs (WordPress/gutenberg#75972) - RTC: Add preference for collaborator notifications (WordPress/gutenberg#76460) - Fix "should undo bold" flaky test (WordPress/gutenberg#76464) - TimePicker: Clamp month day to valid day for month (WordPress/gutenberg#76400) - RTC: Fix error when entity record doesn't have 'meta' property (WordPress/gutenberg#76311) - Navigation: Update close button size. (WordPress/gutenberg#76482) - TemplateContentPanel: fix useSelect warning (WordPress/gutenberg#76421) - DataViews: Add spinner in `DataViewsLayout` in initial load of data (WordPress/gutenberg#76486) (WordPress/gutenberg#76490) - RTC: Fix TypeError in areEditorStatesEqual when selection is undefined (WordPress/gutenberg#76163) - Page/Post Content Focus Mode: Fix insertion into Post Content block (WordPress/gutenberg#76477) - Revisions: use useSubRegistry={false} to fix global store selectors (WordPress/gutenberg#76152) (WordPress/gutenberg#76522) - Fix RTL styling on Connectors, Font Library, and boot-based admin pages (WordPress/gutenberg#76496) - RTC: Auto-register custom taxonomy rest_base values for CRDT sync (WordPress/gutenberg#75983) - RTC: Add a limit for the default provider (WordPress/gutenberg#76437) - Fix RTL styling on AI plugin callout banner (WordPress/gutenberg#76497) - Add command palette trigger button to admin bar (WordPress/gutenberg#75757) - Block Bindings: Remove source items constrained by enums (WordPress/gutenberg#76200) - HTML Block: Remove "unsaved changes" check (WordPress/gutenberg#76086) - CI: Don't build release notes during plugin build workflow for WP Core sync (WordPress/gutenberg#76398) (WordPress/gutenberg#76578) - CI: Simplify strategy matrix in Build Gutenberg Plugin Zip workflow (WordPress/gutenberg#76435) (WordPress/gutenberg#76538) - Media: Add hooks and extension points for client-side media processing (WordPress/gutenberg#74913) - RTC: Fix list sidebar reset during real-time collaboration (WordPress/gutenberg#76025) - RTC: Fix CRDT serialization of nested RichText attributes (WordPress/gutenberg#76597) - RTC: Remove post list lock icon and replace user-specific lock text (WordPress/gutenberg#76322) - Fix HEIC upload error handling and sub-size format (WordPress/gutenberg#76514) - RTC: Fix cursor index sync with rich text formatting (WordPress/gutenberg#76418) - RTC: Allow filtering of `SyncConnectionModal` (WordPress/gutenberg#76554) - RTC: Implement front-end peer limits (WordPress/gutenberg#76565) - Navigation overlay close button may be displayed twice (WordPress/gutenberg#76585) - Site Editor > Templates: fix author filter (WordPress/gutenberg#76625) - Revisions: Show changed block attributes in inspector sidebar (WordPress/gutenberg#76550) - Fix IS_GUTENBERG_PLUGIN env var override in build config (WordPress/gutenberg#76605) - Real Time Collaboration: Introduce filters for the polling intervals. (WordPress/gutenberg#76518) - RTC: Fix RichTextData deserialization (WordPress/gutenberg#76607) - Cross Origin Isolation: Remove `img` from the list of elements that get mutated (WordPress/gutenberg#76618) - RTC: Scroll to collaborator on click (WordPress/gutenberg#76561) - Update changelog link for pull request 11276 (WordPress/gutenberg#76638) - Fix backport changelog filename (WordPress/gutenberg#76651) - Build: Skip non-minified build for WASM-inlined workers (WordPress/gutenberg#76615) - RTC: Change RTC option name (WordPress/gutenberg#76643) - BlockListBlock: fix crash when selectedProps are null (WordPress/gutenberg#75826) - Build: Fix vips worker 404 when SCRIPT_DEBUG is true (WordPress/gutenberg#76657) - useMediaQuery: support in-iframe queries via new `WindowContext` (WordPress/gutenberg#76446) (WordPress/gutenberg#76660) - Refactor admin-ui Page component to use @wordpress/theme tokens and @wordpress/ui layout primitive (WordPress/gutenberg#75963) - Connectors: Improve accessibility (WordPress/gutenberg#76456) - Build: Remove unused JXL WASM module from vips worker (WordPress/gutenberg#76639) - Connectors: fix button size (WordPress/gutenberg#76582) - Compose: Implement useCopyToClipboard and useCopyOnClick with native clipboard API (WordPress/gutenberg#75723) (WordPress/gutenberg#76663) - Connectors: Fetch specific plugin instead of all plugins (WordPress/gutenberg#76594) - Revisions: Add Meta fields diff panel to document sidebar (WordPress/gutenberg#76341) - Loosen client-side media processing requirements (WordPress/gutenberg#76616) - Reduce the added halo for selected block. (WordPress/gutenberg#76619) - Connectors: Add unregisterConnector and upsert support (WordPress/gutenberg#76541) A full list of changes can be found on GitHub: https://github.com/WordPress/gutenberg/compare/8c78d87453509661a9f28f978ba2c242d515563b…487a096a9782ba6110a7686d7b4b2d0c55ed1b06. Log created with: git log --reverse --format="- %s" 8c78d87453509661a9f28f978ba2c242d515563b..487a096a9782ba6110a7686d7b4b2d0c55ed1b06 | sed 's|#\([0-9][0-9]*\)|https://github.com/WordPress/gutenberg/pull/\1|g; /github\.com\/WordPress\/gutenberg\/pull/!d' | pbcopy See #64595. git-svn-id: https://develop.svn.wordpress.org/trunk@62063 602fd350-edb4-49c9-b593-d223f7449a82
markjaquith
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Mar 19, 2026
This updates the pinned hash from the `gutenberg` from `8c78d87453509661a9f28f978ba2c242d515563b` to `487a096a9782ba6110a7686d7b4b2d0c55ed1b06`. The following changes are included: - Disables anchor support for the Page Break block. (WordPress/gutenberg#76434) - WP Admin: Update Connectors screen footer text for consistency. (WordPress/gutenberg#76382) - E2E Tests: Add coverage for AI plugin callout banner on Connectors page (WordPress/gutenberg#76432) - Update sync docs (WordPress/gutenberg#75972) - RTC: Add preference for collaborator notifications (WordPress/gutenberg#76460) - Fix "should undo bold" flaky test (WordPress/gutenberg#76464) - TimePicker: Clamp month day to valid day for month (WordPress/gutenberg#76400) - RTC: Fix error when entity record doesn't have 'meta' property (WordPress/gutenberg#76311) - Navigation: Update close button size. (WordPress/gutenberg#76482) - TemplateContentPanel: fix useSelect warning (WordPress/gutenberg#76421) - DataViews: Add spinner in `DataViewsLayout` in initial load of data (WordPress/gutenberg#76486) (WordPress/gutenberg#76490) - RTC: Fix TypeError in areEditorStatesEqual when selection is undefined (WordPress/gutenberg#76163) - Page/Post Content Focus Mode: Fix insertion into Post Content block (WordPress/gutenberg#76477) - Revisions: use useSubRegistry={false} to fix global store selectors (WordPress/gutenberg#76152) (WordPress/gutenberg#76522) - Fix RTL styling on Connectors, Font Library, and boot-based admin pages (WordPress/gutenberg#76496) - RTC: Auto-register custom taxonomy rest_base values for CRDT sync (WordPress/gutenberg#75983) - RTC: Add a limit for the default provider (WordPress/gutenberg#76437) - Fix RTL styling on AI plugin callout banner (WordPress/gutenberg#76497) - Add command palette trigger button to admin bar (WordPress/gutenberg#75757) - Block Bindings: Remove source items constrained by enums (WordPress/gutenberg#76200) - HTML Block: Remove "unsaved changes" check (WordPress/gutenberg#76086) - CI: Don't build release notes during plugin build workflow for WP Core sync (WordPress/gutenberg#76398) (WordPress/gutenberg#76578) - CI: Simplify strategy matrix in Build Gutenberg Plugin Zip workflow (WordPress/gutenberg#76435) (WordPress/gutenberg#76538) - Media: Add hooks and extension points for client-side media processing (WordPress/gutenberg#74913) - RTC: Fix list sidebar reset during real-time collaboration (WordPress/gutenberg#76025) - RTC: Fix CRDT serialization of nested RichText attributes (WordPress/gutenberg#76597) - RTC: Remove post list lock icon and replace user-specific lock text (WordPress/gutenberg#76322) - Fix HEIC upload error handling and sub-size format (WordPress/gutenberg#76514) - RTC: Fix cursor index sync with rich text formatting (WordPress/gutenberg#76418) - RTC: Allow filtering of `SyncConnectionModal` (WordPress/gutenberg#76554) - RTC: Implement front-end peer limits (WordPress/gutenberg#76565) - Navigation overlay close button may be displayed twice (WordPress/gutenberg#76585) - Site Editor > Templates: fix author filter (WordPress/gutenberg#76625) - Revisions: Show changed block attributes in inspector sidebar (WordPress/gutenberg#76550) - Fix IS_GUTENBERG_PLUGIN env var override in build config (WordPress/gutenberg#76605) - Real Time Collaboration: Introduce filters for the polling intervals. (WordPress/gutenberg#76518) - RTC: Fix RichTextData deserialization (WordPress/gutenberg#76607) - Cross Origin Isolation: Remove `img` from the list of elements that get mutated (WordPress/gutenberg#76618) - RTC: Scroll to collaborator on click (WordPress/gutenberg#76561) - Update changelog link for pull request 11276 (WordPress/gutenberg#76638) - Fix backport changelog filename (WordPress/gutenberg#76651) - Build: Skip non-minified build for WASM-inlined workers (WordPress/gutenberg#76615) - RTC: Change RTC option name (WordPress/gutenberg#76643) - BlockListBlock: fix crash when selectedProps are null (WordPress/gutenberg#75826) - Build: Fix vips worker 404 when SCRIPT_DEBUG is true (WordPress/gutenberg#76657) - useMediaQuery: support in-iframe queries via new `WindowContext` (WordPress/gutenberg#76446) (WordPress/gutenberg#76660) - Refactor admin-ui Page component to use @wordpress/theme tokens and @wordpress/ui layout primitive (WordPress/gutenberg#75963) - Connectors: Improve accessibility (WordPress/gutenberg#76456) - Build: Remove unused JXL WASM module from vips worker (WordPress/gutenberg#76639) - Connectors: fix button size (WordPress/gutenberg#76582) - Compose: Implement useCopyToClipboard and useCopyOnClick with native clipboard API (WordPress/gutenberg#75723) (WordPress/gutenberg#76663) - Connectors: Fetch specific plugin instead of all plugins (WordPress/gutenberg#76594) - Revisions: Add Meta fields diff panel to document sidebar (WordPress/gutenberg#76341) - Loosen client-side media processing requirements (WordPress/gutenberg#76616) - Reduce the added halo for selected block. (WordPress/gutenberg#76619) - Connectors: Add unregisterConnector and upsert support (WordPress/gutenberg#76541) A full list of changes can be found on GitHub: https://github.com/WordPress/gutenberg/compare/8c78d87453509661a9f28f978ba2c242d515563b…487a096a9782ba6110a7686d7b4b2d0c55ed1b06. Log created with: git log --reverse --format="- %s" 8c78d87453509661a9f28f978ba2c242d515563b..487a096a9782ba6110a7686d7b4b2d0c55ed1b06 | sed 's|#\([0-9][0-9]*\)|https://github.com/WordPress/gutenberg/pull/\1|g; /github\.com\/WordPress\/gutenberg\/pull/!d' | pbcopy See #64595. Built from https://develop.svn.wordpress.org/trunk@62063 git-svn-id: http://core.svn.wordpress.org/trunk@61345 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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Summary
Removes the unused
vips-jxl.wasmmodule from the vips worker bundle to reduce build size. WordPress Core does not currently support JXL images — it is not inCLIENT_SIDE_SUPPORTED_MIME_TYPES— so this WASM module is loaded but never used.Size impact
worker.min.jsChanges
vips-jxl.wasmimport frompackages/vips/src/index.tsdynamicLibrariesto only loadvips-heif.wasm(still needed for HEIF/HEIC input and AVIF support)locateFilecallbackFuture size reduction opportunities
Beyond this PR, a custom
wasm-vipsbuild could yield further savings:--enable-lto)-e web)See also:
Re-adding JXL
If WordPress Core adds JXL support in the future, it can be trivially restored by:
import VipsJxlModule from 'wasm-vips/vips-jxl.wasm''vips-jxl.wasm'back to thedynamicLibrariesarraylocateFileTest plan
npm run buildand verifybuild/modules/vips/worker.min.jsis ~13.1 MB (down from 16.1 MB)🤖 Generated with Claude Code