javascript - Setting input type="file" using AngularJS expression not working in Chrome -

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i working on form builder application in angular , have run odd bug in chrome. dynamically setting form input type based on variable. seems work input types except "file", change "text" in chrome. simple example below:

<div ng-app="app">   <input type="{{'file'}}" /><br />   <input type="{{'color'}}" /><br />   <input type="{{'button'}}" value="button" /> </div>

jsfiddle

indeed, sounds bug, can bypass using ngattr:

<input ng-attr-type="{{'file'}}" /> <input ng-attr-type="{{'color'}}" /> <input ng-attr-type="{{'button'}}" value="button" />

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