<!DOCTYPE html> 
<html lang="en"> 
 
<head> 
    <?php include_view('include.head', ['title' => '419 Authentication invalid', 'noindex' => true]); ?> 
</head> 
 
<body> 
 
    <div class="uk-container"> 
            <div class="uk-section-large"> 
                <div class="uk-container uk-container-small"> 
                    <div uk-grid class="uk-grid-collapse uk-grid-match uk-child-width-1"> 
                        <div></div> 
                        <div> 
                            <div class="uk-card uk-card-default uk-card-body"> 
                                <h1 class="uk-heading-primary uk-text-middle">419</h1> 
                                Authentication invalid 
                            </div> 
                        </div> 
                        <div> 
                            <div class="uk-card uk-card-primary uk-card-body"> 
                                <h3 class="uk-card-title">What is this page</h3> 
                                <p> 
                                    It is used as an alternative to 401 Unauthorized in order to differentiate from otherwise authenticated clients being denied access to specific server resources.. 
                                </p> 
                            </div> 
                            <button type="button" class="uk-button uk-button-primary" onclick="history.back()">Go back</button> 
                        </div> 
                    </div> 
                </div>             
        </div> 
    </div>
 
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