diff --git a/loading/lazyload/below-viewport-image-loading-lazy-load-event.tentative.html b/loading/lazyload/below-viewport-image-loading-lazy-load-event.html
similarity index 97%
rename from loading/lazyload/below-viewport-image-loading-lazy-load-event.tentative.html
rename to loading/lazyload/below-viewport-image-loading-lazy-load-event.html
index a42b0f6a8ec70b0..2f54f3dbcbba1b4 100644
--- a/loading/lazyload/below-viewport-image-loading-lazy-load-event.tentative.html
+++ b/loading/lazyload/below-viewport-image-loading-lazy-load-event.html
@@ -30,10 +30,6 @@
        onload="visibility_hidden_img.resolve();" onerror="visibility_hidden_img.reject();">
 </body>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const scroll_trigger_img = new ElementLoadPromise("visible");
   const visible_img = new ElementLoadPromise("visible");
diff --git a/loading/lazyload/disconnected-image-loading-lazy.tentative.html b/loading/lazyload/disconnected-image-loading-lazy.html
similarity index 100%
rename from loading/lazyload/disconnected-image-loading-lazy.tentative.html
rename to loading/lazyload/disconnected-image-loading-lazy.html
diff --git a/loading/lazyload/iframe-loading-eager.tentative.html b/loading/lazyload/iframe-loading-eager.html
similarity index 95%
rename from loading/lazyload/iframe-loading-eager.tentative.html
rename to loading/lazyload/iframe-loading-eager.html
index 26209332ff5a0c4..8509e74d15566d6 100644
--- a/loading/lazyload/iframe-loading-eager.tentative.html
+++ b/loading/lazyload/iframe-loading-eager.html
@@ -7,10 +7,6 @@
   <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const t = async_test("Test that iframes with loading='eager' load immediately regardless of their position with respect to the viewport.");
 
diff --git a/loading/lazyload/iframe-loading-lazy.tentative.html b/loading/lazyload/iframe-loading-lazy.html
similarity index 95%
rename from loading/lazyload/iframe-loading-lazy.tentative.html
rename to loading/lazyload/iframe-loading-lazy.html
index bc1434d26d92b5b..aa241e1797c26ae 100644
--- a/loading/lazyload/iframe-loading-lazy.tentative.html
+++ b/loading/lazyload/iframe-loading-lazy.html
@@ -7,10 +7,6 @@
   <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const t = async_test("Test that iframes with loading='lazy' load once they enter the viewport.");
 
diff --git a/loading/lazyload/image-loading-eager.tentative.html b/loading/lazyload/image-loading-eager.html
similarity index 95%
rename from loading/lazyload/image-loading-eager.tentative.html
rename to loading/lazyload/image-loading-eager.html
index 76eef3a8f45c131..b395f84500bf3cf 100644
--- a/loading/lazyload/image-loading-eager.tentative.html
+++ b/loading/lazyload/image-loading-eager.html
@@ -7,10 +7,6 @@
   <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const t = async_test("Test that images with loading='eager' load immediately regardless of their position with respect to the viewport.");
 
diff --git a/loading/lazyload/image-loading-lazy-below-viewport-dynamic.tentative.html b/loading/lazyload/image-loading-lazy-below-viewport-dynamic.html
similarity index 95%
rename from loading/lazyload/image-loading-lazy-below-viewport-dynamic.tentative.html
rename to loading/lazyload/image-loading-lazy-below-viewport-dynamic.html
index a545410f9787a7e..e27212cfd79c19c 100644
--- a/loading/lazyload/image-loading-lazy-below-viewport-dynamic.tentative.html
+++ b/loading/lazyload/image-loading-lazy-below-viewport-dynamic.html
@@ -8,10 +8,6 @@
   <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const t = async_test("Test that below viewport images with loading='lazy' " +
                        "and changed to loading='eager' load and do not block " +
diff --git a/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-001.sub.tentative.html b/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-001.sub.html
similarity index 93%
rename from loading/lazyload/image-loading-lazy-in-cross-origin-ifame-001.sub.tentative.html
rename to loading/lazyload/image-loading-lazy-in-cross-origin-ifame-001.sub.html
index 6a4fe015f27d192..5e5f0185e51f2ff 100644
--- a/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-001.sub.tentative.html
+++ b/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-001.sub.html
@@ -8,10 +8,6 @@
 <script src="/common/get-host-info.sub.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <iframe id="iframe" width="500px" height="500px"></iframe>
 <script>
 promise_test(async t => {
diff --git a/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-002.sub.tentative.html b/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-002.sub.html
similarity index 93%
rename from loading/lazyload/image-loading-lazy-in-cross-origin-ifame-002.sub.tentative.html
rename to loading/lazyload/image-loading-lazy-in-cross-origin-ifame-002.sub.html
index dea5552589ad04a..978f41a68881545 100644
--- a/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-002.sub.tentative.html
+++ b/loading/lazyload/image-loading-lazy-in-cross-origin-ifame-002.sub.html
@@ -8,10 +8,6 @@
 <script src="/common/get-host-info.sub.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <div style="height:1000vh;"></div>
 <iframe id="iframe" width="500px" height="500px"></iframe>
 <script>
diff --git a/loading/lazyload/image-loading-lazy-in-script-disabled-iframe.tentative.html b/loading/lazyload/image-loading-lazy-in-script-disabled-iframe.html
similarity index 89%
rename from loading/lazyload/image-loading-lazy-in-script-disabled-iframe.tentative.html
rename to loading/lazyload/image-loading-lazy-in-script-disabled-iframe.html
index 97179d88516762b..05b51705e722b5d 100644
--- a/loading/lazyload/image-loading-lazy-in-script-disabled-iframe.tentative.html
+++ b/loading/lazyload/image-loading-lazy-in-script-disabled-iframe.html
@@ -7,10 +7,6 @@
 <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <div style="height:1000vh;"></div>
 <iframe id="iframe" sandbox="allow-same-origin"
         src="resources/image-loading-lazy-in-viewport-iframe.html">
diff --git a/loading/lazyload/image-loading-lazy-in-viewport-dynamic.tentative.html b/loading/lazyload/image-loading-lazy-in-viewport-dynamic.html
similarity index 94%
rename from loading/lazyload/image-loading-lazy-in-viewport-dynamic.tentative.html
rename to loading/lazyload/image-loading-lazy-in-viewport-dynamic.html
index d316a6ae22bea4b..c9baceda5874285 100644
--- a/loading/lazyload/image-loading-lazy-in-viewport-dynamic.tentative.html
+++ b/loading/lazyload/image-loading-lazy-in-viewport-dynamic.html
@@ -8,10 +8,6 @@
   <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const t = async_test("Test that in viewport images with loading='lazy' and " +
                        "changed to loading='eager' do not block the window " +
diff --git a/loading/lazyload/image-loading-lazy-load-event.tentative.html b/loading/lazyload/image-loading-lazy-load-event.html
similarity index 96%
rename from loading/lazyload/image-loading-lazy-load-event.tentative.html
rename to loading/lazyload/image-loading-lazy-load-event.html
index 9e56a3150953494..1748a5bcc431f48 100644
--- a/loading/lazyload/image-loading-lazy-load-event.tentative.html
+++ b/loading/lazyload/image-loading-lazy-load-event.html
@@ -22,10 +22,6 @@
        onload="visibility_hidden_img.resolve();" onerror="visibility_hidden_img.reject();">
 </body>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const visible_img = new ElementLoadPromise("visible");
   const visibility_hidden_img = new ElementLoadPromise("visibility_hidden");
diff --git a/loading/lazyload/image-loading-lazy-move-document.tentative.html b/loading/lazyload/image-loading-lazy-move-document.html
similarity index 93%
rename from loading/lazyload/image-loading-lazy-move-document.tentative.html
rename to loading/lazyload/image-loading-lazy-move-document.html
index 1f4de887f7fd0a2..ff7e83105cc9041 100644
--- a/loading/lazyload/image-loading-lazy-move-document.tentative.html
+++ b/loading/lazyload/image-loading-lazy-move-document.html
@@ -6,10 +6,6 @@
 <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <div style="height:1000vh;"></div>
 <img loading="lazy"
      src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAIAAAAC64paAAAAG0lEQVR42mP8z0A%2BYKJA76jmUc2jmkc1U0EzACKcASfOgGoMAAAAAElFTkSuQmCC">
diff --git a/loading/lazyload/image-loading-lazy-move-into-script-disabled-iframe.tentative.html b/loading/lazyload/image-loading-lazy-move-into-script-disabled-iframe.html
similarity index 93%
rename from loading/lazyload/image-loading-lazy-move-into-script-disabled-iframe.tentative.html
rename to loading/lazyload/image-loading-lazy-move-into-script-disabled-iframe.html
index 52fcf94dfcdcc84..f039db5fc24d811 100644
--- a/loading/lazyload/image-loading-lazy-move-into-script-disabled-iframe.tentative.html
+++ b/loading/lazyload/image-loading-lazy-move-into-script-disabled-iframe.html
@@ -7,10 +7,6 @@
 <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <div style="height:1000vh;"></div>
 <iframe id="iframe" src="resources/image-loading-lazy-in-viewport-iframe.html">
 </iframe>
diff --git a/loading/lazyload/image-loading-lazy-multicol.tentative.html b/loading/lazyload/image-loading-lazy-multicol.html
similarity index 95%
rename from loading/lazyload/image-loading-lazy-multicol.tentative.html
rename to loading/lazyload/image-loading-lazy-multicol.html
index eb69d6810d60a19..1458fb44b7849fe 100644
--- a/loading/lazyload/image-loading-lazy-multicol.tentative.html
+++ b/loading/lazyload/image-loading-lazy-multicol.html
@@ -7,10 +7,6 @@
   <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const t = async_test("Test that images with loading='lazy' under multicol load once they enter the viewport.");
 
diff --git a/loading/lazyload/image-loading-lazy.tentative.html b/loading/lazyload/image-loading-lazy.html
similarity index 95%
rename from loading/lazyload/image-loading-lazy.tentative.html
rename to loading/lazyload/image-loading-lazy.html
index 04625e0d7c4d87f..0c1c39a8ae95f0b 100644
--- a/loading/lazyload/image-loading-lazy.tentative.html
+++ b/loading/lazyload/image-loading-lazy.html
@@ -8,10 +8,6 @@
   <script src="/resources/testharnessreport.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const t = async_test("Images with loading='lazy' load only when in the viewport");
 
diff --git a/loading/lazyload/invisible-image.tentative.html b/loading/lazyload/invisible-image.html
similarity index 97%
rename from loading/lazyload/invisible-image.tentative.html
rename to loading/lazyload/invisible-image.html
index f7d887b18a228e6..ee9ae25e402e81a 100644
--- a/loading/lazyload/invisible-image.tentative.html
+++ b/loading/lazyload/invisible-image.html
@@ -31,10 +31,6 @@
   </script>
 </body>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const visibility_hidden_element = document.getElementById("visibility_hidden");
   const visibility_hidden_element_explicit_eager =
diff --git a/loading/lazyload/move-element-and-scroll.tentative.html b/loading/lazyload/move-element-and-scroll.html
similarity index 94%
rename from loading/lazyload/move-element-and-scroll.tentative.html
rename to loading/lazyload/move-element-and-scroll.html
index f9d89807b8c5575..3c95fae5bf354f6 100644
--- a/loading/lazyload/move-element-and-scroll.tentative.html
+++ b/loading/lazyload/move-element-and-scroll.html
@@ -7,10 +7,6 @@
   <script src="common.js"></script>
 </head>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <body>
   <div id="tall_div" style="height:1000vh"></div>
   <div id="below_viewport_div"></div>
diff --git a/loading/lazyload/not-rendered-below-viewport-image-loading-lazy.tentative.html b/loading/lazyload/not-rendered-below-viewport-image-loading-lazy.html
similarity index 96%
rename from loading/lazyload/not-rendered-below-viewport-image-loading-lazy.tentative.html
rename to loading/lazyload/not-rendered-below-viewport-image-loading-lazy.html
index 0c40d7dbcd832b3..5f4fbdf24b3ce1a 100644
--- a/loading/lazyload/not-rendered-below-viewport-image-loading-lazy.tentative.html
+++ b/loading/lazyload/not-rendered-below-viewport-image-loading-lazy.html
@@ -27,10 +27,6 @@
   <div id="rendered_div"></div>
 </body>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const display_none_img = new ElementLoadPromise("display_none");
   const attribute_hidden_img = new ElementLoadPromise("attribute_hidden");
diff --git a/loading/lazyload/not-rendered-image-loading-lazy.tentative.html b/loading/lazyload/not-rendered-image-loading-lazy.html
similarity index 95%
rename from loading/lazyload/not-rendered-image-loading-lazy.tentative.html
rename to loading/lazyload/not-rendered-image-loading-lazy.html
index fafd668e32ad995..ca1c813d3b0954e 100644
--- a/loading/lazyload/not-rendered-image-loading-lazy.tentative.html
+++ b/loading/lazyload/not-rendered-image-loading-lazy.html
@@ -21,10 +21,6 @@
   </script>
 </body>
 
-<!--
-Marked as tentative until https://github.com/whatwg/html/pull/3752 is landed.
--->
-
 <script>
   const display_none_img = new ElementLoadPromise("display_none");
   const attribute_hidden_img = new ElementLoadPromise("attribute_hidden");
diff --git a/loading/lazyload/original-base-url-applied-2-tentative.html b/loading/lazyload/original-base-url-applied-2.html
similarity index 100%
rename from loading/lazyload/original-base-url-applied-2-tentative.html
rename to loading/lazyload/original-base-url-applied-2.html
diff --git a/loading/lazyload/original-base-url-applied-iframe-tentative.html b/loading/lazyload/original-base-url-applied-iframe.html
similarity index 100%
rename from loading/lazyload/original-base-url-applied-iframe-tentative.html
rename to loading/lazyload/original-base-url-applied-iframe.html
diff --git a/loading/lazyload/original-base-url-applied-tentative.html b/loading/lazyload/original-base-url-applied.html
similarity index 100%
rename from loading/lazyload/original-base-url-applied-tentative.html
rename to loading/lazyload/original-base-url-applied.html
diff --git a/loading/lazyload/original-crossorigin-applied-tentative.sub.html b/loading/lazyload/original-crossorigin-applied.sub.html
similarity index 100%
rename from loading/lazyload/original-crossorigin-applied-tentative.sub.html
rename to loading/lazyload/original-crossorigin-applied.sub.html
diff --git a/loading/lazyload/original-referrer-policy-applied-tentative.sub.html b/loading/lazyload/original-referrer-policy-applied.sub.html
similarity index 100%
rename from loading/lazyload/original-referrer-policy-applied-tentative.sub.html
rename to loading/lazyload/original-referrer-policy-applied.sub.html
diff --git a/loading/lazyload/picture-loading-lazy.tentative.html b/loading/lazyload/picture-loading-lazy.html
similarity index 100%
rename from loading/lazyload/picture-loading-lazy.tentative.html
rename to loading/lazyload/picture-loading-lazy.html
diff --git a/loading/lazyload/remove-element-and-scroll.tentative.html b/loading/lazyload/remove-element-and-scroll.html
similarity index 100%
rename from loading/lazyload/remove-element-and-scroll.tentative.html
rename to loading/lazyload/remove-element-and-scroll.html