diff --git a/web/src/test/auto/dom/cases/attachment/pageContextAttachment.js b/web/src/test/auto/dom/cases/attachment/pageContextAttachment.js
index ca48834c85..5c5a95b92a 100644
--- a/web/src/test/auto/dom/cases/attachment/pageContextAttachment.js
+++ b/web/src/test/auto/dom/cases/attachment/pageContextAttachment.js
@@ -587,7 +587,7 @@ describe.only('KMW element-attachment logic', function () {
       attacher.shutdown();
     });
 
-    it('tricky layout with absolute positioning', function () {
+    it('five inputs with absolute positioning', function () {
       fixture.load("wild-absolute-positioning.html");
 
       const attacher = this.attacher;
@@ -617,6 +617,58 @@ describe.only('KMW element-attachment logic', function () {
       ]);
       attacher.shutdown();
     });
+
+    it('seven inputs with absolute positioning, two added dynamically', async function () {
+      fixture.load("wild-absolute-positioning.html");
+
+      const attacher = this.attacher;
+      let attached = [];
+
+      attacher.on('enabled', (elem) => attached.push(elem));
+      attacher.install(false);
+
+      // Numerals:  the order of their definition within the HTML fixture.
+      // Directionals:  the actual positioning on the page.
+      const elements = [
+        "input1-middle",
+        "input2-top-right",
+        "input3-bottom-left",
+        "input4-top-left",
+        "input5-bottom-right"
+      ];
+
+      assert.sameMembers(attached.map((elem) => elem.id), elements);
+      // Top to bottom, left to right.
+      assert.sameOrderedMembers(attacher.sortedInputs.map((elem) => elem.id), [
+        "input4-top-left",
+        "input2-top-right",
+        "input1-middle",
+        "input3-bottom-left",
+        "input5-bottom-right"
+      ]);
+
+      fixture.load("wild-absolute-positioning-extras.html", /* append = */ true );
+
+      // Let the MutationObservers handle things
+      await Promise.resolve();
+
+      elements.push("input6-middle-left");
+      elements.push("input7-top-middle");
+
+      assert.sameMembers(attached.map((elem) => elem.id), elements);
+      // Top to bottom, left to right.
+      assert.sameOrderedMembers(attacher.sortedInputs.map((elem) => elem.id), [
+        "input4-top-left",
+        "input7-top-middle",
+        "input2-top-right",
+        "input6-middle-left",
+        "input1-middle",
+        "input3-bottom-left",
+        "input5-bottom-right"
+      ]);
+
+      attacher.shutdown();
+    });
   });
 
   describe.skip("maintenance of site-intended .inputMode", () => {
diff --git a/web/src/test/auto/resources/fixtures/wild-absolute-positioning-extras.html b/web/src/test/auto/resources/fixtures/wild-absolute-positioning-extras.html
new file mode 100644
index 0000000000..3ef8762c64
--- /dev/null
+++ b/web/src/test/auto/resources/fixtures/wild-absolute-positioning-extras.html
@@ -0,0 +1,2 @@
+<input id="input6-middle-left"  style="position: absolute; left:0%;  top:50%;"/>
+<input id="input7-top-middle"    style="position: absolute; left:40%; top:0%; width:20%"/>
\ No newline at end of file