[Webkit-unassigned] [Bug 187510] New: [FileAPI] FileReader.readAsArrayBuffer(null) should throw a Type Error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187510

            Bug ID: 187510
           Summary: [FileAPI] FileReader.readAsArrayBuffer(null) should
                    throw a Type Error
           Product: WebKit
           Version: Safari 11
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore JavaScript
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zac.spitzer at gmail.com

Webkit currently just returns, all other major browsers do a type check and throw an error

var reader = new FileReader();
reader.onloadend = function(e) {
  console.log(e);
}
reader.readAsArrayBuffer(null);

https://jsbin.com/zonagopuhi/edit?html,js,console,output

https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/fileapi/FileReader.cpp#L79

Here is the Chrome commit which added type checking for FileReader
https://groups.google.com/a/chromium.org/forum/#!topic/blink-reviews/vZxyVFHJ7MU

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