diff --git a/includes/MinervaHooks.php b/includes/MinervaHooks.php
index dd37aa3..93ddbf9 100644
--- a/includes/MinervaHooks.php
+++ b/includes/MinervaHooks.php
@@ -122,11 +122,15 @@ class MinervaHooks {
 				"resources/skins.minerva.scripts/page-issues/page/PageIssueLink.js",
 				"resources/skins.minerva.scripts/page-issues/page/pageIssueFormatter.js",
 				'resources/skins.minerva.scripts/pageIssues.js',
+				'resources/skins.minerva.scripts/UriUtil.js',
+				'resources/skins.minerva.scripts/TitleUtil.js',
 				// test files
 				'tests/qunit/skins.minerva.scripts/downloadPageAction.test.js',
 				'tests/qunit/skins.minerva.scripts/pageIssuesParser.test.js',
 				'tests/qunit/skins.minerva.scripts/AB.test.js',
 				'tests/qunit/skins.minerva.scripts/pageIssues.test.js',
+				'tests/qunit/skins.minerva.scripts/UriUtil.test.js',
+				'tests/qunit/skins.minerva.scripts/TitleUtil.test.js',
 				'tests/qunit/skins.minerva.notifications.badge/NotificationBadge.test.js'
 			],
 		];
diff --git a/resources/skins.minerva.scripts/TitleUtil.js b/resources/skins.minerva.scripts/TitleUtil.js
new file mode 100644
index 0000000..868eb18
--- /dev/null
+++ b/resources/skins.minerva.scripts/TitleUtil.js
@@ -0,0 +1,138 @@
+// Someone has to maintain this wherever it lives. If it live in Core, it becomes a public API.
+// If it lives in some client-side target of mediawiki-title that accepts a MediaWiki config instead
+// of a SiteInfo, it still becomes a public API. If it lives where used, it becomes a copy and paste
+// implementation where each copy can deviate but deletion is easy. See additional discussion in
+// T218358 and I95b08e77eece5cd4dae62f6f237d492d6b0fe42b.
+( function ( M ) {
+	var UriUtil = M.require( 'skins.minerva.scripts/UriUtil' );
+
+	/**
+	 * Returns the decoded wiki page title referenced by the passed link as a string when parsable.
+	 * The title query parameter is returned, if present. Otherwise, a heuristic is used to attempt
+	 * to extract the title from the path.
+	 *
+	 * The API is the source of truth for page titles. This function should only be used in
+	 * circumstances where the API cannot be consulted.
+	 *
+	 * Assuming the current page is on metawiki, consider the following example links and
+	 * `newFromUri()` outputs:
+	 *
+	 *     https://meta.wikimedia.org/wiki/Foo → Foo (path title)
+	 *     http://meta.wikimedia.org/wiki/Foo → Foo (mismatching protocol)
+	 *     /wiki/Foo → Foo (relative URI)
+	 *     /w/index.php?title=Foo → Foo (title query parameter)
+	 *     /wiki/Talk:Foo → Talk:Foo (non-main namespace URI)
+	 *     /wiki/Foo bar → Foo_bar (name with spaces)
+	 *     /wiki/Foo%20bar → Foo_bar (name with percent encoded spaces)
+	 *     /wiki/Foo+bar → Foo+bar (name with +)
+	 *     /w/index.php?title=Foo%2bbar → Foo+bar (query parameter with +)
+	 *     / → null (mismatching article path)
+	 *     /wiki/index.php?title=Foo → null (mismatching script path)
+	 *     https://archive.org/ → null (mismatching host)
+	 *     https://foo.wikimedia.org/ → null (mismatching host)
+	 *     https://en.wikipedia.org/wiki/Bar → null (mismatching host)
+	 *
+	 * This function invokes `Uri.isInternal()` to validate that this link is assuredly a local
+	 * wiki link and that the internal usage of both the title query parameter and value of
+	 * wgArticlePath are relevant.
+	 *
+	 * This function doesn't throw. `null` is returned for any unparseable input.
+	 *
+	 * @param {mw.Uri|Object|string} [uri] Passed to Uri.
+	 * @param {Object|boolean} [options] Passed to Uri.
+	 * @param {Object|boolean} [options.validateReadOnlyLink] If true, only links that would show a
+	 *     page for reading are considered. E.g., `/wiki/Foo` and `/w/index.php?title=Foo` would
+	 *     validate but `/w/index.php?title=Foo&action=bar` would not.
+	 * @return {mw.Title|null} A Title or `null`.
+	 */
+	function newFromUri( uri, options ) {
+		var
+			mwUri,
+			regExp,
+			matches,
+			title;
+
+		try {
+			// uri may or may not be a Uri but the Uri constructor accepts a Uri parameter.
+			mwUri = new mw.Uri( uri, options );
+		} catch ( e ) {
+			return null;
+		}
+
+		if ( !UriUtil.isInternal( mwUri ) ) {
+			return null;
+		}
+
+		if ( ( options || {} ).validateReadOnlyLink && !isReadOnlyUri( mwUri ) ) {
+			// An unknown query parameter is used. This may not be a read-only link.
+			return null;
+		}
+
+		if ( mwUri.query.title ) {
+			// True if input starts with wgScriptPath.
+			regExp = new RegExp( '^' + mw.RegExp.escape( mw.config.get( 'wgScriptPath' ) ) + '/' );
+
+			// URL has a nonempty `title` query parameter like `/w/index.php?title=Foo`. The script
+			// path should match.
+			matches = regExp.test( mwUri.path );
+			if ( !matches ) {
+				return null;
+			}
+
+			// The parameter was already decoded at Uri construction.
+			title = mwUri.query.title;
+		} else {
+			// True if input starts with wgArticlePath and ends with a nonempty page title. The
+			// first matching group (index 1) is the page title.
+			regExp = new RegExp( '^' + mw.RegExp.escape( mw.config.get( 'wgArticlePath' ) ).replace( '\\$1', '(.+)' ) );
+
+			// No title query parameter is present so the URL may be "pretty" like `/wiki/Foo`.
+			// `Uri.path` should not contain query parameters or a fragment, as is assumed in
+			// `Uri.getRelativePath()`. Try to isolate the title.
+			matches = regExp.exec( mwUri.path );
+			if ( !matches || !matches[ 1 ] ) {
+				return null;
+			}
+
+			try {
+				// `Uri.path` was not previously decoded, as is assumed in `Uri.getRelativePath()`,
+				// and decoding may now fail. Do not use `Uri.decode()` which is designed to be
+				// paired with `Uri.encode()` and replaces `+` characters with spaces.
+				title = decodeURIComponent( matches[ 1 ] );
+			} catch ( e ) {
+				return null;
+			}
+		}
+
+		// Append the fragment, if present.
+		title += mwUri.fragment ? '#' + mwUri.fragment : '';
+
+		return mw.Title.newFromText( title );
+	}
+
+	/**
+	 * Validates that the passed link is for reading.
+	 *
+	 * The following links return true:
+	 *     /wiki/Foo
+	 *     /w/index.php?title=Foo
+	 *     /w/index.php?oldid=123
+	 *
+	 * The following links return false:
+	 *     /w/index.php?title=Foo&action=bar
+	 *
+	 * @private
+	 * @static
+	 * @method isReadOnlyUri
+	 * @param {mw.Uri} uri A Uri to an internal wiki page.
+	 * @return {boolean} True if uri has no query parameters or only known parameters for reading.
+	 */
+	function isReadOnlyUri( uri ) {
+		var length = Object.keys( uri.query ).length;
+		return length === ( ( 'oldid' in uri.query ? 1 : 0 ) + ( 'title' in uri.query ? 1 : 0 ) );
+	}
+
+	M.define( 'skins.minerva.scripts/TitleUtil', {
+		newFromUri: newFromUri
+	} );
+}( mw.mobileFrontend ) );
diff --git a/resources/skins.minerva.scripts/UriUtil.js b/resources/skins.minerva.scripts/UriUtil.js
new file mode 100644
index 0000000..2def8b8
--- /dev/null
+++ b/resources/skins.minerva.scripts/UriUtil.js
@@ -0,0 +1,34 @@
+( function ( M ) {
+	/**
+	 * Compares the default Uri host, usually `window.location.host`, and `mw.Uri.host`. Equivalence
+	 * tests internal linkage, a mismatch may indicate an external link. Interwiki links are
+	 * considered external.
+	 *
+	 * This function only indicates internal in the sense of being on the same host or not. It has
+	 * no knowledge of [[Link]] vs [Link] links.
+	 *
+	 * On https://meta.wikimedia.org/wiki/Foo, the following links would be considered *internal*
+	 * and return `true`:
+	 *
+	 *     https://meta.wikimedia.org/
+	 *     https://meta.wikimedia.org/wiki/Bar
+	 *     https://meta.wikimedia.org/w/index.php?title=Bar
+	 *
+	 * Similarly, the following links would be considered *not* internal and return `false`:
+	 *
+	 *     https://archive.org/
+	 *     https://foo.wikimedia.org/
+	 *     https://en.wikipedia.org/
+	 *     https://en.wikipedia.org/wiki/Bar
+	 *
+	 * @param {mw.Uri} uri
+	 * @return {boolean}
+	 */
+	function isInternal( uri ) {
+		return uri.host === mw.Uri().host;
+	}
+
+	M.define( 'skins.minerva.scripts/UriUtil', {
+		isInternal: isInternal
+	} );
+}( mw.mobileFrontend ) );
diff --git a/resources/skins.minerva.scripts/init.js b/resources/skins.minerva.scripts/init.js
index 09fab7f..d1147ff 100644
--- a/resources/skins.minerva.scripts/init.js
+++ b/resources/skins.minerva.scripts/init.js
@@ -5,6 +5,7 @@
 		toast = mobile.toast,
 		time = mobile.time,
 		skin = M.require( 'mobile.init/skin' ),
+		TitleUtil = M.require( 'skins.minerva.scripts/TitleUtil' ),
 		issues = M.require( 'skins.minerva.scripts/pageIssues' ),
 		downloadPageAction = M.require( 'skins.minerva.scripts/downloadPageAction' ),
 		loader = mobile.rlModuleLoader,
@@ -16,9 +17,11 @@
 		Anchor = mobile.Anchor,
 		overlayManager = OverlayManager.getSingleton(),
 		page = M.getCurrentPage(),
+		redLinks = page.getRedLinks(),
 		api = new mw.Api(),
 		thumbs = page.getThumbnails(),
-		eventBus = mobile.eventBusSingleton;
+		eventBus = mobile.eventBusSingleton,
+		namespaceIDs = mw.config.get( 'wgNamespaceIds' );
 
 	/**
 	 * Event handler for clicking on an image thumbnail
@@ -255,16 +258,78 @@
 		}
 	}
 
+	/**
+	 * Tests a URL to determine if it links to a local User namespace page or not.
+	 *
+	 * Assuming the current page visited is hosted on metawiki, the following examples would return
+	 * true:
+	 *
+	 *   https://meta.wikimedia.org/wiki/User:Foo
+	 *   /wiki/User:Foo
+	 *   /wiki/User:Nonexistent_user_page
+	 *
+	 * The following examples return false:
+	 *
+	 *   https://en.wikipedia.org/wiki/User:Foo
+	 *   /wiki/Foo
+	 *   /wiki/User_talk:Foo
+	 *
+	 * @param {string} url
+	 * @return {boolean}
+	 */
+	function isUserUri( url ) {
+		var
+			title = TitleUtil.newFromUri( url ),
+			namespace = title ? title.getNamespaceId() : undefined;
+		return namespace === namespaceIDs.user;
+	}
+
+	/**
+	 * Strip the edit action from red links to nonexistent User namespace pages.
+	 * @return {void}
+	 */
+	function initUserRedLinks() {
+		redLinks.filter( function ( _, element ) {
+			// Filter out non-User namespace pages.
+			return isUserUri( element.href );
+		} ).each( function ( _, element ) {
+			var uri = new mw.Uri( element.href );
+			if ( uri.query.action !== 'edit' ) {
+				// Nothing to strip.
+				return;
+			}
+
+			// Strip the action.
+			delete uri.query.action;
+
+			// Update the element with the new link.
+			element.href = uri.toString();
+		} );
+	}
+
 	/**
 	 * Initialize red links call-to-action
 	 *
 	 * Upon clicking a red link, show an interstitial CTA explaining that the page doesn't exist
 	 * with a button to create it, rather than directly navigate to the edit form.
 	 *
+	 * Special case T201339: following a red link to a user or user talk page should not prompt for
+	 * its creation. The reasoning is that user pages should be created by their owners and it's far
+	 * more common that non-owners follow a user's red linked user page to consider their
+	 * contributions, account age, or other activity.
+	 *
+	 * For example, a user adds a section to a Talk page and signs their contribution (which creates
+	 * a link to their user page whether exists or not). If the user page does not exist, that link
+	 * will be red. In both cases, another user follows this link, not to edit create a page for
+	 * that user but to obtain information on them.
+	 *
 	 * @ignore
 	 */
 	function initRedlinksCta() {
-		page.getRedLinks().on( 'click', function ( ev ) {
+		redLinks.filter( function ( _, element ) {
+			// Filter out local User namespace pages.
+			return !isUserUri( element.href );
+		} ).on( 'click', function ( ev ) {
 			var drawerOptions = {
 					progressiveButton: new Button( {
 						progressive: true,
@@ -337,6 +402,7 @@
 		initHistoryLink( $( '.last-modifier-tagline a' ) );
 		appendDownloadButton();
 		initRedlinksCta();
+		initUserRedLinks();
 		initEditLink();
 		// Setup the issues banner on the page
 		// Pages which dont exist (id 0) cannot have issues
diff --git a/skin.json b/skin.json
index 18b23f7..1fbee67 100644
--- a/skin.json
+++ b/skin.json
@@ -380,7 +380,9 @@
 				"skins.minerva.icons.images.scripts",
 				"mediawiki.util",
 				"mediawiki.router",
+				"mediawiki.RegExp",
 				"mediawiki.Title",
+				"mediawiki.Uri",
 				"mobile.startup",
 				"mediawiki.user",
 				"mediawiki.storage",
@@ -427,6 +429,8 @@
 				"resources/skins.minerva.scripts/page-issues/page/PageIssueLink.js",
 				"resources/skins.minerva.scripts/page-issues/page/pageIssueFormatter.js",
 				"resources/skins.minerva.scripts/pageIssues.js",
+				"resources/skins.minerva.scripts/UriUtil.js",
+				"resources/skins.minerva.scripts/TitleUtil.js",
 				"resources/skins.minerva.scripts/init.js",
 				"resources/skins.minerva.scripts/initLogging.js",
 				"resources/skins.minerva.scripts/mobileRedirect.js",
diff --git a/tests/qunit/skins.minerva.scripts/TitleUtil.test.js b/tests/qunit/skins.minerva.scripts/TitleUtil.test.js
new file mode 100644
index 0000000..1fb211f
--- /dev/null
+++ b/tests/qunit/skins.minerva.scripts/TitleUtil.test.js
@@ -0,0 +1,229 @@
+( function ( M ) {
+	var TitleUtil = M.require( 'skins.minerva.scripts/TitleUtil' );
+
+	QUnit.module( 'Minerva TitleUtil', QUnit.newMwEnvironment( {
+		setup: function () {
+			this.mwUriOrg = mw.Uri;
+			mw.Uri = mw.UriRelative( 'https://meta.wikimedia.org/w/index.php' );
+		},
+		teardown: function () {
+			mw.Uri = this.mwUriOrg;
+			delete this.mwUriOrg;
+		},
+		config: {
+			wgArticlePath: '/wiki/$1',
+			wgScriptPath: '/w'
+		}
+	} ) );
+
+	QUnit.test( '.newFromUri()', function ( assert ) {
+		[ '', 'https://meta.wikimedia.org' ].forEach( function ( authority, index ) {
+			var
+				indexMsg = 'case ' + index + ' ',
+				authorityMsg = ' authority="' + authority + '"',
+				validateReadOnlyLink = { validateReadOnlyLink: true };
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/w/index.php?title=Title' ).getPrefixedDb(),
+				'Title',
+				indexMsg + 'title is in query parameter' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/wiki/Title' ).getPrefixedDb(),
+				'Title',
+				indexMsg + 'title is in path' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/foo/bar/wiki/Title' ),
+				null,
+				indexMsg + 'title is not in nonmatching path' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/wiki/%E6%B8%AC%E8%A9%A6' ).getPrefixedDb(),
+				'測試',
+				indexMsg + 'title is decoded' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/wiki/Foo bar' ).getPrefixedDb(),
+				'Foo_bar',
+				indexMsg + 'title with space is decoded' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/wiki/Foo%20bar' ).getPrefixedDb(),
+				'Foo_bar',
+				indexMsg + 'title with encoded space is decoded' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/w/index.php?title=Title#fragment' ).getPrefixedDb(),
+				'Title',
+				indexMsg + 'fragment is omitted from query title' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/wiki/Title#fragment' ).getPrefixedDb(),
+				'Title',
+				indexMsg + 'fragment is omitted from path title' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/w/index.php?title=Title#fragment' ).getFragment(),
+				'fragment',
+				indexMsg + 'fragment is present after query parameter' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/wiki/Title#fragment' ).getFragment(),
+				'fragment',
+				indexMsg + 'fragment is present after path' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/w/index.php?title=Title#foo%20bar' ).getFragment(),
+				'foo bar',
+				indexMsg + 'fragment is decoded' + authorityMsg
+			);
+
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/w/index.php?title=Title', validateReadOnlyLink ).getPrefixedDb(),
+				'Title',
+				indexMsg + 'query title is read-only' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/wiki/Title', validateReadOnlyLink ).getPrefixedDb(),
+				'Title',
+				indexMsg + 'path title is read-only' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/w/index.php?title=Title&oldid=123', validateReadOnlyLink ).getPrefixedDb(),
+				'Title',
+				indexMsg + 'query title with revision is read-only' + authorityMsg
+			);
+			assert.strictEqual(
+				TitleUtil.newFromUri( authority + '/w/index.php?title=Title&param', validateReadOnlyLink ),
+				null,
+				indexMsg + 'query title with unknown parameter is not read-only' + authorityMsg
+			);
+		} );
+
+		// Bad or odd inputs.
+		[
+			'%', null, undefined, '', ' ', '/', {}, '\\', '/wiki/%', '/w/index.php?title=%'
+		].forEach( function ( input, index ) {
+			assert.strictEqual(
+				TitleUtil.newFromUri( input ),
+				null,
+				'Case ' + index + ' no Title in bad input input="' + input + '"'
+			);
+		} );
+
+		// Parameters are passed to Uri's constructor.
+		assert.strictEqual(
+			TitleUtil.newFromUri( { protocol: 'https',
+				host: 'meta.wikimedia.org',
+				path: '/wiki/Title' } ).getPrefixedDb(),
+			'Title',
+			'title is in Uri parameters'
+		);
+
+		// A Uri itself can be passed.
+		assert.strictEqual(
+			TitleUtil.newFromUri( new mw.Uri( 'https://meta.wikimedia.org/wiki/Title' ) ).getPrefixedDb(),
+			'Title',
+			'title is in Uri'
+		);
+
+		// JSDoc examples.
+		// https://meta.wikimedia.org/wiki/Foo → Foo (path title)
+		assert.strictEqual(
+			TitleUtil.newFromUri( 'https://meta.wikimedia.org/wiki/Foo' ).getPrefixedDb(),
+			'Foo',
+			'path title'
+		);
+
+		// http://meta.wikimedia.org/wiki/Foo → Foo (mismatching protocol)
+		assert.strictEqual(
+			TitleUtil.newFromUri( 'http://meta.wikimedia.org/wiki/Foo' ).getPrefixedDb(),
+			'Foo',
+			'mismatching protocol'
+		);
+
+		// /wiki/Foo → Foo (relative URI)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/wiki/Foo' ).getPrefixedDb(),
+			'Foo',
+			'relative URI'
+		);
+
+		// /w/index.php?title=Foo → Foo (title query parameter)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/w/index.php?title=Foo' ).getPrefixedDb(),
+			'Foo',
+			'title query parameter'
+		);
+
+		// /wiki/Talk:Foo → Talk:Foo (non-main namespace URI)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/wiki/Talk:Foo' ).getPrefixedDb(),
+			'Talk:Foo',
+			'non-main namespace URI'
+		);
+
+		// /wiki/Foo bar → Foo_bar (name with spaces)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/wiki/Foo bar' ).getPrefixedDb(),
+			'Foo_bar',
+			'name with spaces'
+		);
+
+		// /wiki/Foo%20bar → Foo_bar (name with percent encoded spaces)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/wiki/Foo%20bar' ).getPrefixedDb(),
+			'Foo_bar',
+			'name with percent encoded spaces'
+		);
+
+		// /wiki/Foo+bar → Foo+bar (name with +)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/wiki/Foo+bar' ).getPrefixedDb(),
+			'Foo+bar',
+			'name with +'
+		);
+
+		// /w/index.php?title=Foo%2bbar → Foo+bar (query parameter with +)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/w/index.php?title=Foo%2bbar' ).getPrefixedDb(),
+			'Foo+bar',
+			'query parameter with +'
+		);
+
+		// / → null (mismatching article path)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/' ),
+			null,
+			'mismatching article path'
+		);
+
+		// /wiki/index.php?title=Foo → null (mismatching script path)
+		assert.strictEqual(
+			TitleUtil.newFromUri( '/wiki/index.php?title=Foo' ),
+			null,
+			'mismatching script path'
+		);
+
+		// https://archive.org/ → null (mismatching host)
+		assert.strictEqual(
+			TitleUtil.newFromUri( 'https://archive.org/' ),
+			null,
+			'mismatching host (0)'
+		);
+
+		// https://foo.wikimedia.org/ → null (mismatching host)
+		assert.strictEqual(
+			TitleUtil.newFromUri( 'https://foo.wikimedia.org/' ),
+			null,
+			'mismatching host (1)'
+		);
+
+		// https://en.wikipedia.org/wiki/Bar → null (mismatching host)
+		assert.strictEqual(
+			TitleUtil.newFromUri( 'https://en.wikipedia.org/wiki/Bar' ),
+			null,
+			'mismatching host (2)'
+		);
+	} );
+}( mw.mobileFrontend ) );
diff --git a/tests/qunit/skins.minerva.scripts/UriUtil.test.js b/tests/qunit/skins.minerva.scripts/UriUtil.test.js
new file mode 100644
index 0000000..95d9a47
--- /dev/null
+++ b/tests/qunit/skins.minerva.scripts/UriUtil.test.js
@@ -0,0 +1,47 @@
+( function ( M ) {
+	var UriUtil = M.require( 'skins.minerva.scripts/UriUtil' );
+
+	QUnit.module( 'Minerva UriUtil', QUnit.newMwEnvironment( {
+		setup: function () {
+			this.mwUriOrg = mw.Uri;
+			mw.Uri = mw.UriRelative( 'https://meta.wikimedia.org/w/index.php' );
+		},
+		teardown: function () {
+			mw.Uri = this.mwUriOrg;
+			delete this.mwUriOrg;
+		}
+	} ) );
+
+	QUnit.test( '.isInternal()', function ( assert ) {
+		assert.strictEqual(
+			UriUtil.isInternal( new mw.Uri( '/relative' ) ),
+			true,
+			'relative URLs are internal'
+		);
+		assert.strictEqual(
+			UriUtil.isInternal( new mw.Uri( 'http://meta.wikimedia.org/' ) ),
+			true,
+			'matching hosts are internal'
+		);
+		assert.strictEqual(
+			UriUtil.isInternal( new mw.Uri( 'https:/meta.wikimedia.org/' ) ),
+			true,
+			'protocol is irrelevant'
+		);
+		assert.strictEqual(
+			UriUtil.isInternal( new mw.Uri( 'https://meta.wikimedia.org/path' ) ),
+			true,
+			'path is irrelevant'
+		);
+		assert.strictEqual(
+			UriUtil.isInternal( new mw.Uri( 'https://archive.org/' ) ),
+			false,
+			'external links are not internal'
+		);
+		assert.strictEqual(
+			UriUtil.isInternal( new mw.Uri( 'https://www.meta.wikimedia.org/' ) ),
+			false,
+			'differing subdomains are not internal'
+		);
+	} );
+}( mw.mobileFrontend ) );