@@ -423,7 +423,11 @@ class BrowserDomAdapter extends GenericBrowserDomAdapter {
       return null;
     }
     var baseUri = Uri.parse(href);
-    return baseUri.path;
+    return baseUri.path[0] == '/' ? baseUri.path : ('/' + baseUri.path);
+  }
+
+  resetBaseElement() {
+    baseElement = null;
   }
 
   String getUserAgent() {
 
@@ -297,6 +297,7 @@ export class BrowserDomAdapter extends GenericBrowserDomAdapter {
     }
     return relativePath(href);
   }
+  resetBaseElement(): void { baseElement = null; }
   getUserAgent(): string { return window.navigator.userAgent; }
   setData(element, name: string, value: string) { element.dataset[name] = value; }
   getData(element, name: string): string { return element.dataset[name]; }
@@ -313,7 +314,7 @@ function getBaseElementHref(): string {
       return null;
     }
   }
-  return baseElement.attr('href');
+  return baseElement.getAttribute('href');
 }
 
 // based on urlUtils.js in AngularJS 1
 
@@ -127,6 +127,7 @@ export class DomAdapter {
   getHistory(): History { throw _abstract(); }
   getLocation(): Location { throw _abstract(); }
   getBaseHref(): string { throw _abstract(); }
+  resetBaseElement(): void { throw _abstract(); }
   getUserAgent(): string { throw _abstract(); }
   setData(element, name: string, value: string) { throw _abstract(); }
   getData(element, name: string): string { throw _abstract(); }
 
@@ -400,6 +400,10 @@ class Html5LibDomAdapter implements DomAdapter {
     throw 'not implemented';
   }
 
+  resetBaseElement() {
+    throw 'not implemented';
+  }
+
   String getUserAgent() {
     throw 'not implemented';
   }
 
@@ -532,6 +532,8 @@ export class Parse5DomAdapter extends DomAdapter {
       return this.defaultDoc().body;
     }
   }
+  getBaseHref(): string { throw 'not implemented'; }
+  resetBaseElement(): void { throw 'not implemented'; }
   getHistory(): History { throw 'not implemented'; }
   getLocation(): Location { throw 'not implemented'; }
   getUserAgent(): string { return "Fake user agent"; }
 
@@ -49,5 +49,42 @@ export function main() {
       expect(DOM.isElementNode(secondChild)).toBe(true);
 
     });
+
+    if (DOM.supportsDOMEvents()) {
+      describe('getBaseHref', () => {
+        beforeEach(() => DOM.resetBaseElement());
+
+        it('should return null if base element is absent',
+           () => { expect(DOM.getBaseHref()).toBeNull(); });
+
+        it('should return the value of the base element', () => {
+          var baseEl = DOM.createElement('base');
+          DOM.setAttribute(baseEl, 'href', '/drop/bass/connon/');
+          var headEl = DOM.defaultDoc().head;
+          DOM.appendChild(headEl, baseEl);
+
+          var baseHref = DOM.getBaseHref();
+          DOM.removeChild(headEl, baseEl);
+          DOM.resetBaseElement();
+
+          expect(baseHref).toEqual('/drop/bass/connon/');
+        });
+
+        it('should return a relative url', () => {
+          var baseEl = DOM.createElement('base');
+          DOM.setAttribute(baseEl, 'href', 'base');
+          var headEl = DOM.defaultDoc().head;
+          DOM.appendChild(headEl, baseEl);
+
+          var baseHref = DOM.getBaseHref();
+          DOM.removeChild(headEl, baseEl);
+          DOM.resetBaseElement();
+
+          expect(baseHref).toEqual('/base');
+        });
+      });
+    }
+
+
   });
-}
+}
Original file line number	Diff line number	Diff line change
`@@ -423,7 +423,11 @@ class BrowserDomAdapter extends GenericBrowserDomAdapter {`
`423`	`423`	`return null;`
`424`	`424`	`}`
`425`	`425`	`var baseUri = Uri.parse(href);`
`426`		`- return baseUri.path;`
	`426`	`+ return baseUri.path[0] == '/' ? baseUri.path : ('/' + baseUri.path);`
	`427`	`+ }`
	`428`	`+`
	`429`	`+ resetBaseElement() {`
	`430`	`+ baseElement = null;`
`427`	`431`	`}`
`428`	`432`
`429`	`433`	`String getUserAgent() {`
Original file line number	Diff line number	Diff line change
`@@ -297,6 +297,7 @@ export class BrowserDomAdapter extends GenericBrowserDomAdapter {`
`297`	`297`	`}`
`298`	`298`	`return relativePath(href);`
`299`	`299`	`}`
	`300`	`+ resetBaseElement(): void { baseElement = null; }`
`300`	`301`	`getUserAgent(): string { return window.navigator.userAgent; }`
`301`	`302`	`setData(element, name: string, value: string) { element.dataset[name] = value; }`
`302`	`303`	`getData(element, name: string): string { return element.dataset[name]; }`
`@@ -313,7 +314,7 @@ function getBaseElementHref(): string {`
`313`	`314`	`return null;`
`314`	`315`	`}`
`315`	`316`	`}`
`316`		`- return baseElement.attr('href');`
	`317`	`+ return baseElement.getAttribute('href');`
`317`	`318`	`}`
`318`	`319`
`319`	`320`	`// based on urlUtils.js in AngularJS 1`
Original file line number	Diff line number	Diff line change
`@@ -400,6 +400,10 @@ class Html5LibDomAdapter implements DomAdapter {`
`400`	`400`	`throw 'not implemented';`
`401`	`401`	`}`
`402`	`402`
	`403`	`+ resetBaseElement() {`
	`404`	`+ throw 'not implemented';`
	`405`	`+ }`
	`406`	`+`
`403`	`407`	`String getUserAgent() {`
`404`	`408`	`throw 'not implemented';`
`405`	`409`	`}`
Original file line number	Diff line number	Diff line change
`@@ -532,6 +532,8 @@ export class Parse5DomAdapter extends DomAdapter {`
`532`	`532`	`return this.defaultDoc().body;`
`533`	`533`	`}`
`534`	`534`	`}`
	`535`	`+ getBaseHref(): string { throw 'not implemented'; }`
	`536`	`+ resetBaseElement(): void { throw 'not implemented'; }`
`535`	`537`	`getHistory(): History { throw 'not implemented'; }`
`536`	`538`	`getLocation(): Location { throw 'not implemented'; }`
`537`	`539`	`getUserAgent(): string { return "Fake user agent"; }`