fix(web): add Safari fallback for requestIdleCallback#9137
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sriramveeraghanta merged 2 commits intoMay 28, 2026
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📝 WalkthroughWalkthroughThe PR centralizes idle-callback handling with requestIdle/cancelIdle wrappers, installs those wrappers into globalThis during module initialization, and imports the polyfills module in the client entry before React hydration. ChangesSafari requestIdleCallback Polyfill Setup
Sequence Diagram(s)sequenceDiagram
participant Client as entry.client
participant Polyfills as polyfills/index
participant IdleTask as idle-task.installIdleCallbackPolyfill
participant Global as globalThis
participant Runtime as runtime (task scheduling)
Client->>Polyfills: import & execute (void polyfills)
Polyfills->>IdleTask: installIdleCallbackPolyfill()
IdleTask->>Global: set requestIdleCallback / cancelIdleCallback (native or fallback)
Client->>IdleTask: runIdleTask(callback) -> requestIdle(callback, {timeout:300})
IdleTask->>Runtime: schedule via globalThis.requestIdleCallback or setTimeout
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Inline comments:
In `@apps/web/core/lib/idle-task.ts`:
- Around line 11-37: The fallback implementations and availability checks should
use globalThis instead of window to avoid runtime errors when window is
undefined: update requestIdleFallback and cancelIdleFallback to call
globalThis.setTimeout and globalThis.clearTimeout, and change the runtime checks
in requestIdle and cancelIdle to use typeof globalThis !== "undefined" and
typeof globalThis.requestIdleCallback / globalThis.cancelIdleCallback ===
"function" so you only call globalThis.requestIdleCallback(globalCallback,
options) when available and otherwise return requestIdleFallback(callback) /
cancelIdleFallback(id).
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apps/web/app/entry.client.tsxapps/web/core/lib/idle-task.tsapps/web/core/lib/polyfills/index.ts
Switch idle-task fallback paths from window.* to globalThis.* so the fallback no longer crashes in environments where window is undefined. Also thread IdleRequestOptions through requestIdleFallback so the caller's timeout hint is honored when falling back. Addresses CodeRabbit review feedback on makeplane#9137.
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sriramveeraghanta
approved these changes
May 28, 2026
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Description
Fixes a Safari/iOS crash caused by unguarded usage of
window.requestIdleCallbackin the project layout/gantt view.Safari does not currently support
requestIdleCallbackby default, which caused the following runtime error:TypeError: window.requestIdleCallback is not a functionThis PR adds a shared compatibility fallback for:
requestIdleCallbackcancelIdleCallbackThe polyfill is installed during client startup before React hydration, while preserving native behavior in Chrome and Firefox.
Type of Change
Screenshots and Media (if applicable)
N/A
Test Scenarios
requestIdleCallbackis unavailableReferences
Closes #9134
Summary by CodeRabbit