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fix(flushMicroTasks): Fallback to no scheduler in case of exception #739

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8 changes: 5 additions & 3 deletions src/flush-microtasks.js
Original file line number Diff line number Diff line change
Expand Up @@ -20,9 +20,6 @@ function getIsUsingFakeTimers() {

const globalObj = typeof window === 'undefined' ? global : window
let Scheduler = globalObj.Scheduler
const isModernScheduleCallbackSupported = satisfies(React.version, '>16.8.6', {
includePrerelease: true,
})

let didWarnAboutMessageChannel = false
let enqueueTask
Expand Down Expand Up @@ -58,9 +55,14 @@ try {
'if you encounter this warning.',
)
}

}
}

const isModernScheduleCallbackSupported = Scheduler && satisfies(React.version, '>16.8.6', {
includePrerelease: true,
})

function scheduleCallback(cb) {
const NormalPriority = Scheduler
? Scheduler.NormalPriority || Scheduler.unstable_NormalPriority
Expand Down