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/*!
* JavaScript to update page URL when a redirect is viewed, ensuring that the
* page is scrolled to the id when it's a redirect with fragment.
*
* This is loaded in the top queue, so avoid unnecessary dependencies
* like mediawiki.Title or mediawiki.Uri.
*/
( function ( mw, $ ) {
var profile = $.client.profile(),
canonical = mw.config.get( 'wgInternalRedirectTargetUrl' ),
fragment = null,
shouldChangeFragment, index;
index = canonical.indexOf( '#' );
if ( index !== -1 ) {
fragment = canonical.slice( index );
}
// Never override the fragment if the user intended to look at a different section
shouldChangeFragment = fragment && !location.hash;
// Replace the whole URL if possible, otherwise just change the fragment
if ( canonical && history.replaceState ) {
if ( !shouldChangeFragment ) {
// If the current page view has a fragment already, don't override it
canonical = canonical.replace( /#.*$/, '' );
canonical += location.hash;
}
// This will also cause the browser to scroll to given fragment
history.replaceState( /*data=*/ history.state, /*title=*/ document.title, /*url=*/ canonical );
// …except for IE 10 and 11. Prod it with a location.hash change.
if ( shouldChangeFragment && profile.name === 'msie' && profile.versionNumber >= 10 ) {
location.hash = fragment;
}
} else if ( shouldChangeFragment ) {
if ( profile.layout === 'webkit' && profile.layoutVersion < 420 ) {
// Released Safari w/ WebKit 418.9.1 messes up horribly
// Nightlies of 420+ are ok
return;
}
location.hash = fragment;
}
if ( shouldChangeFragment && profile.layout === 'gecko' ) {
// Mozilla needs to wait until after load, otherwise the window doesn't
// scroll. See <https://bugzilla.mozilla.org/show_bug.cgi?id=516293>.
// There's no obvious way to detect this programmatically, so we use
// version-testing. If Firefox fixes the bug, they'll jump twice, but
// better twice than not at all, so make the fix hit future versions as
// well.
$( function () {
if ( location.hash === fragment ) {
location.hash = fragment;
}
} );
}
}( mediaWiki, jQuery ) );
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