diff --git a/testing/web-platform/meta/url/a-element-origin-xhtml.xhtml.ini b/testing/web-platform/meta/url/a-element-origin-xhtml.xhtml.ini
index f6d7e33e8bea..1edaca841f65 100644
--- a/testing/web-platform/meta/url/a-element-origin-xhtml.xhtml.ini
+++ b/testing/web-platform/meta/url/a-element-origin-xhtml.xhtml.ini
@@ -8,3 +8,6 @@
   [Parsing origin: <ssh://example.com/foo/bar.git> against <http://example.org/>]
     expected: FAIL
 
+  [Parsing origin: <http://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/url/a-element-origin.html.ini b/testing/web-platform/meta/url/a-element-origin.html.ini
index b9b861890c65..2fedac4641a7 100644
--- a/testing/web-platform/meta/url/a-element-origin.html.ini
+++ b/testing/web-platform/meta/url/a-element-origin.html.ini
@@ -8,3 +8,6 @@
   [Parsing origin: <ssh://example.com/foo/bar.git> against <http://example.org/>]
     expected: FAIL
 
+  [Parsing origin: <http://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/url/a-element-xhtml.xhtml.ini b/testing/web-platform/meta/url/a-element-xhtml.xhtml.ini
index 6bc77b648afa..b208f0fc2a28 100644
--- a/testing/web-platform/meta/url/a-element-xhtml.xhtml.ini
+++ b/testing/web-platform/meta/url/a-element-xhtml.xhtml.ini
@@ -830,3 +830,24 @@
   [Parsing: <\\\\\\.\\y:> against <about:blank>]
     expected: FAIL
 
+  [Parsing: <non-special://a^b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <http://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <sc://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <non-special://a>b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <non-special://a<b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <http://a<b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <http://a^b> against <about:blank>]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/url/a-element.html.ini b/testing/web-platform/meta/url/a-element.html.ini
index 940dcf0e7c1d..307f9a474473 100644
--- a/testing/web-platform/meta/url/a-element.html.ini
+++ b/testing/web-platform/meta/url/a-element.html.ini
@@ -872,3 +872,24 @@
   [Parsing: <\\\\\\.\\y:> against <about:blank>]
     expected: FAIL
 
+  [Parsing: <non-special://a^b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <http://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <sc://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <non-special://a>b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <non-special://a<b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <http://a<b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <http://a^b> against <about:blank>]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/url/failure.html.ini b/testing/web-platform/meta/url/failure.html.ini
index 7ecd78b42b91..7975652f906d 100644
--- a/testing/web-platform/meta/url/failure.html.ini
+++ b/testing/web-platform/meta/url/failure.html.ini
@@ -590,6 +590,57 @@
   [XHR: \\\\\\.\\y: should throw]
     expected: FAIL
 
-  [XHR: \\\\\\.\\Y: should throw]
+  [Location's href: non-special://a>b should throw]
+    expected: FAIL
+
+  [Location's href: non-special://a^b should throw]
+    expected: FAIL
+
+  [URL's constructor's base argument: non-special://a^b should throw]
+    expected: FAIL
+
+  [URL's href: non-special://a^b should throw]
+    expected: FAIL
+
+  [window.open(): non-special://a^b should throw]
+    expected: FAIL
+
+  [URL's constructor's base argument: non-special://a>b should throw]
+    expected: FAIL
+
+  [URL's href: non-special://a<b should throw]
+    expected: FAIL
+
+  [window.open(): non-special://a<b should throw]
+    expected: FAIL
+
+  [XHR: non-special://a>b should throw]
+    expected: FAIL
+
+  [XHR: non-special://a<b should throw]
+    expected: FAIL
+
+  [Location's href: http://a<b should throw]
+    expected: FAIL
+
+  [XHR: non-special://a^b should throw]
+    expected: FAIL
+
+  [URL's constructor's base argument: non-special://a<b should throw]
+    expected: FAIL
+
+  [Location's href: http://a>b should throw]
+    expected: FAIL
+
+  [Location's href: http://a^b should throw]
+    expected: FAIL
+
+  [URL's href: non-special://a>b should throw]
+    expected: FAIL
+
+  [Location's href: non-special://a<b should throw]
+    expected: FAIL
+
+  [window.open(): non-special://a>b should throw]
     expected: FAIL
 
diff --git a/testing/web-platform/meta/url/url-constructor.html.ini b/testing/web-platform/meta/url/url-constructor.html.ini
index 22ca7daf0e61..c6eb1bd33310 100644
--- a/testing/web-platform/meta/url/url-constructor.html.ini
+++ b/testing/web-platform/meta/url/url-constructor.html.ini
@@ -419,3 +419,18 @@
     expected:
       if os == "win": FAIL
 
+  [Parsing: <non-special://a^b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <http://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <sc://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <non-special://a>b> against <about:blank>]
+    expected: FAIL
+
+  [Parsing: <non-special://a<b> against <about:blank>]
+    expected: FAIL
+
diff --git a/testing/web-platform/meta/url/url-origin.html.ini b/testing/web-platform/meta/url/url-origin.html.ini
index 79ab2ebc2eb3..7f3351a15c70 100644
--- a/testing/web-platform/meta/url/url-origin.html.ini
+++ b/testing/web-platform/meta/url/url-origin.html.ini
@@ -8,3 +8,6 @@
   [Origin parsing: <ssh://example.com/foo/bar.git> against <http://example.org/>]
     expected: FAIL
 
+  [Origin parsing: <http://\x1f!"$&'()*+,-.;=_`{|}~/> against <about:blank>]
+    expected: FAIL
+