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Editorial Team
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Asked: 2026-05-25T00:07:50+00:00

How can I suppress all JavaScript runtime error popups, from the programmers side?

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How can I suppress all JavaScript runtime error popups, from the programmers side?

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  1. Editorial Team

    To suppress all JavaScript errors there seems to be a window.onerror event.
    If it is replaced as early as possible(e.g. right after the head) by a function which returns true – there will be no error popups, which is quite useful after debugging is done.

    <head>
<script type="text/javascript">
    window.onerror = function(message, url, lineNumber) {  
        // code to execute on an error  
        return true; // prevents browser error messages  
    };
</script> 
...

    Error Logging is possible too, as explained here

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