use URL.isSameOrigin in Frame.isSameOrigin

src/browser/Frame.zig

@@ -638,15 +638,7 @@ pub fn getPinnedArena(self: *Frame, size_or_bucket: anytype, debug: []const u8)
 
 pub fn isSameOrigin(self: *const Frame, url: [:0]const u8) bool {
     const current_origin = self.origin orelse return false;
-
-    // fastpath
-    if (!std.mem.startsWith(u8, url, current_origin)) {
-        return false;
-    }
-
-    // Starting here, at least protocols are equals.
-    // Compare hosts (domain:port) strictly
-    return std.mem.eql(u8, URL.getHost(url), URL.getHost(current_origin));
+    return URL.isSameOrigin(url, current_origin);
 }
 
 pub fn navigate(self: *Frame, request_url: [:0]const u8, opts: NavigateOpts) !void {

src/browser/URL.zig

@@ -215,7 +215,7 @@ pub fn getPathname(raw: [:0]const u8) []const u8 {
     return raw[path_start..query_or_hash_start];
 }
 
-pub fn getProtocol(raw: [:0]const u8) []const u8 {
+pub fn getProtocol(raw: []const u8) []const u8 {
     const pos = std.mem.indexOfScalarPos(u8, raw, 0, ':') orelse return "";
     return raw[0 .. pos + 1];
 }
@@ -341,7 +341,7 @@ pub fn getOrigin(allocator: Allocator, raw: [:0]const u8) !?[]const u8 {
     return raw[0..authority_end];
 }
 
-pub fn isSameOrigin(url: [:0]const u8, origin: [:0]const u8) bool {
+pub fn isSameOrigin(url: []const u8, origin: []const u8) bool {
     return std.mem.eql(u8, getProtocol(url), getProtocol(origin)) and
         std.mem.eql(u8, getHost(url), getHost(origin));
 }