Canvas build CI failure

[softmarshmallow]

This pull request contains changes generated by a Cursor Cloud Agent

 

Summary by CodeRabbit

• Chores
  • Enhanced WebAssembly build configuration for improved exception handling and error recovery support in the canvas rendering system.

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Project	Deployment	Actions	Updated (UTC)
docs	Ready	Preview, Comment	Feb 4, 2026 6:04pm
grida	Ready	Preview, Comment	Feb 4, 2026 6:04pm

5 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
code	Ignored		Feb 4, 2026 6:04pm
legacy	Ignored		Feb 4, 2026 6:04pm
backgrounds	Skipped		Feb 4, 2026 6:04pm
blog	Skipped		Feb 4, 2026 6:04pm
viewer	Skipped		Feb 4, 2026 6:04pm

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Walkthrough

Configuration changes to the Emscripten WebAssembly build target, adding linker flags and environment variables to enable setjmp/longjmp support and legacy WebAssembly exception handling during compilation and linking of the canvas-wasm crate.

Changes

Cohort / File(s)	Summary
WebAssembly Exception Handling Configuration crates/grida-canvas-wasm/.cargo/config.toml, crates/grida-canvas-wasm/justfile	Added linker flags (-sSUPPORT_LONGJMP=wasm, -sWASM_LEGACY_EXCEPTIONS=1) and SKIA build arguments to enable setjmp/longjmp and legacy exception handling support for the wasm32-unknown-emscripten target.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• emsdk 5.0.0 #506: Directly modifies the same crates/grida-canvas-wasm/.cargo/config.toml file to adjust wasm exception and Emscripten linker configuration flags.

Poem

🐰 With flags and args, we hop and leap,
To catch exceptions, stored so deep,
Longjmp and wasm, hand in hand,
Our canvas now across the land! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Title check	❓ Inconclusive	The title 'Canvas build CI failure' is vague and does not clearly describe the specific changes made. It mentions a problem but doesn't convey what was actually fixed or changed in the codebase.	Consider a more descriptive title such as 'Configure wasm linker flags for exception handling support' or 'Fix canvas wasm build with setjmp/longjmp support' to better reflect the actual code changes made.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch chore/canvas-build-ci-failure-731b

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[softmarshmallow]

duplicate #524