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How Do I Handle An Undefined Error In Document.activelyelement?

ByCharles Pye

Dec 13, 2021 , , , , , , , ,

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    Over the past week, several of our readers have reported an unspecified document.actively element error.

      console.log (document.activeElement);

    This password is in the iframe. If you open a page containing an iframe of this skill, you will see “SCRIPT16389: Unspecified error” in IE 8/9 standard mode. No problem after opening oddities in mode. I don’t know about this, searched if IE supports document.activeElement, it says:> IE4 is supported.

    document.activeelement unspecified error

    After more research, it turned out that updating the exam to window.document.activeElement can fix this problem.

    I exited window.document to help find activeElement that is marked as permission denied.

    I am
    is curious how this was solved, so I got out of typeof window.document.activeElement very well and it resolved in a way I didn’t know it actually existed, unknown < / code>.

    Obviously typeof value: unknown is recognized for IE> = 8, http: // stackoverflow see: .com / a / 10982960/369687.

    So I suggest updating the Boolean Cast parsing for From:

    canuseactiveelement 

     var canUseActiveElement is the same !! (window type! == 'undefined' && window.document && typeof window.document.activeElement); 
     var canUseActiveElement = Window !! (typeof! == 'undefined' && window.document && typeof window.document.activeElement! =='unknown');

    There are two nice bugs related to document.activeElement in IE that happened recently through the jQuery UI. I thought that in order to help others feel less pain, they need to be documented.

    Accessing Document.activeElement From

    and to whom