Bug 226641

Summary: CountQueuingStrategy.constructor misses checking if the init.highWaterMark is exist or not
Product: WebKit Reporter: zyscoder <zyscoder>
Component: WebCore Misc.Assignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: bugs-noreply, calvaris, cdumez, mcatanzaro, sam, webkit-bug-importer, youennf
Priority: P2 Keywords: InRadar
Version: WebKit Local Build   
Hardware: Unspecified   
OS: Unspecified   

zyscoder@gmail.com
Reported 2021-06-04 05:26:34 PDT
Steps to reproduce: (1) Open a tab and navigate to any URL; (2) Run one of the following codes in the Console of Devtools: ``` new CountQueuingStrategy({highWaterMark:undefined}) / new CountQueuingStrategy({}) ``` (3) Then this code would be evaluated successfully without throwing any exception. Actual results: This code is evaluated successfully without throwing any exception. Expected results: As the spec(https://streams.spec.whatwg.org/#dictdef-queuingstrategyinit) says, CountQueuingStrategy.constructor asks a double value as its init.highWaterMark param. Thus these codes should throw an exception. In my test, both Chrome and Firefox throw exceptions: Chrome: `VM1491:1 Uncaught TypeError: Failed to construct 'CountQueuingStrategy': required member highWaterMark is undefined.` Firefox: `Uncaught TypeError: 'highWaterMark' must not be undefined`
Attachments
Radar WebKit Bug Importer
Comment 1 2021-06-11 05:27:19 PDT
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