node: add baseURI getter

Author: krichprollsch

src/browser/dom/node.zig

@@ -111,6 +111,9 @@ pub const Node = struct {
     // --------
 
     // Read-only attributes
+    pub fn get_baseURI(_: *parser.Node, page: *Page) ![]const u8 {
+        return page.url.raw;
+    }
 
     pub fn get_firstChild(self: *parser.Node) !?Union {
         const res = try parser.nodeFirstChild(self);
@@ -737,6 +740,10 @@ test "Browser.DOM.node" {
         .{ "link.normalize()", "undefined" },
     }, .{});
 
+    try runner.testCases(&.{
+        .{ "link.baseURI", "https://lightpanda.io/opensource-browser/" },
+    }, .{});
+
     try runner.testCases(&.{
         .{ "content.removeChild(append) !== undefined", "true" },
         .{ "last_child.__proto__.constructor.name !== 'HTMLHeadingElement'", "true" },