IBMa · tombrunet · Sep 2, 2026 · Aug 31, 2026 · Sep 1, 2026 · Sep 1, 2026
diff --git a/accessibility-checker-engine/src/v4/rules/aria_accessiblename_exists.ts b/accessibility-checker-engine/src/v4/rules/aria_accessiblename_exists.ts
@@ -51,7 +51,7 @@ export const aria_accessiblename_exists: Rule = {
         "toolkitLevel": eToolkitLevel.LEVEL_ONE,
         reasonCodes: ["fail_no_accessible_name_image"]
     }],
-    act: [{"23a2a8": {"fail_no_accessible_name_image": "fail"}}],
+    act: [{"23a2a8": { "fail_no_accessible_name_image": "fail"}}],
     run: (context: RuleContext, options?: {}, contextHierarchies?: RuleContextHierarchy): RuleResult | RuleResult[] => {
         const ruleContext = context["dom"].node as Element;
 

diff --git a/accessibility-checker-engine/src/v4/rules/iframe_interactive_tabbable.ts b/accessibility-checker-engine/src/v4/rules/iframe_interactive_tabbable.ts
@@ -67,6 +67,14 @@ export const iframe_interactive_tabbable: Rule = {
         if (!iframElem || !iframElem.contentDocument || !iframElem.contentDocument.documentElement)
             return null;
 
+        // If the iframe is blocked by an open modal dialog it is effectively inert — inapplicable
+        const doc = ruleContext.ownerDocument;
+        if (doc) {
+            const dialogs = Array.from(doc.querySelectorAll("dialog"));
+            const blockedByModal = dialogs.some(d => d.matches(":modal") && !d.contains(ruleContext));
+            if (blockedByModal) return null;
+        }
+
         const count = CommonUtil.getTabbableChildren(ruleContext);
         if (count > 0)
             return RuleFail("fail_invalid");

diff --git a/...cessibility/rules/aria_accessiblename_exists_ruleunit/ACT_23a2a8_fail_2_div_role_img.html b/...cessibility/rules/aria_accessiblename_exists_ruleunit/ACT_23a2a8_fail_2_div_role_img.html
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+
+<!--
+   /******************************************************************************
+     Copyright:: 2025- IBM, Inc
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+  *****************************************************************************/
+-->
+
+<!--
+    ACT rule 23a2a8 - Image has non-empty accessible name
+    Failed Example 2: https://www.w3.org/WAI/content-assets/wcag-act-rules/testcases/23a2a8/496963cfd35d4873c010469c47c84d4358fba035.html
+
+    A <div> with role="img" and no accessible name (no aria-label, aria-labelledby, or title).
+    ACT expects: failed
+    Checker currently returns: inapplicable (nothing fires)
+-->
+
+<html lang="en">
+
+<head>
+    <title>ACT 23a2a8 Failed Example 2 - div with role=img and no accessible name</title>
+</head>
+
+<body>
+    <div role="img" style="width:72px; height:48px; background-image: url(/test-assets/w3c-logo.png)">
+    </div>
+
+    <script type="text/javascript">
+        UnitTest = {
+            ruleIds: ["aria_accessiblename_exists"],
+            results: [{
+                "ruleId": "aria_accessiblename_exists",
+                "value": [
+                    "INFORMATION",
+                    "FAIL"
+                ],
+                "path": {
+                    "dom": "/html[1]/body[1]/div[1]",
+                    "aria": "/document[1]/img[1]"
+                },
+                "reasonId": "fail_no_accessible_name_image",
+                "message": "Element <div> with \"img\" role has no accessible name",
+                "messageArgs": [
+                    "div",
+                    "img"
+                ],
+                "apiArgs": [],
+                "category": "Accessibility"
+            }]
+        }
+    </script>
+</body>
+
+</html>
diff --git a/accessibility-checker/src/README.md b/accessibility-checker/src/README.md
@@ -260,6 +260,31 @@ module.exports = {
 };
 ```
 
+If your project uses ES modules (`"type": "module"` in `package.json`), Node.js cannot load a CommonJS `aceconfig.js` or `achecker.js` file. Use an `aceconfig.mjs` (or `achecker.mjs`) file with a default export instead:
+
+```js
+export default {
+    ruleArchive: "latest",
+    policies: ["IBM_Accessibility"],
+    failLevels: ["violation", "potentialviolation"],
+    reportLevels: [
+        "violation",
+        "potentialviolation",
+        "recommendation",
+        "potentialrecommendation",
+        "manual",
+        "pass",
+    ],
+    outputFormat: ["json"],
+    outputFilenameTimestamp: true,
+    label: [process.env.TRAVIS_BRANCH],
+    outputFolder: "results",
+    baselineFolder: "test/baselines",
+    cacheFolder: "/tmp/accessibility-checker",
+    puppeteerArgs: [ "--no-sandbox", "--disable-setuid-sandbox" ]
+};
+```
+
 ## APIs
 
 ### async aChecker.getCompliance(`content`, `label` : string)

diff --git a/...ssibility-checker/test-act-w3/achecker.js → ...sibility-checker/test-act-w3/achecker.mjs b/...ssibility-checker/test-act-w3/achecker.js → ...sibility-checker/test-act-w3/achecker.mjs
@@ -1,4 +1,4 @@
-module.exports = {
+export default {
     // optional - Specify the rule archive
     // Default: latest
     // Run `npx achecker archives` for a list of valid ruleArchive ids and policy ids
@@ -11,19 +11,10 @@ module.exports = {
     policies: ['IBM_Accessibility'],
 
     // optional - Specify one or many violation levels on which to fail the test
-    //            i.e. If specified violation then the testcase will only fail if
-    //                 a violation is found during the scan.
-    // i.e. failLevels: ["violation"]
-    // i.e. failLevels: ["violation","potential violation"] or refer to below as a list
-    // Default: ["violation","potential violation"]
     failLevels: ['violation'],
 
     // optional - Specify one or many violation levels which should be reported
-    //            i.e. If specified violation then in the report it would only contain
-    //                 results which are level of violation.
-    // i.e. reportLevels: ["violation"]
     // Valid values: violation, potentialviolation, recommendation, potentialrecommendation, manual
-    // Default: ["violation","potential violation"]
     reportLevels: [
         "violation",
         "potentialviolation",
@@ -34,24 +25,15 @@ module.exports = {
     ],
 
     // Optional - Which type should the results be outputted to
-    // Valid values: json, csv, disable
-    // Default: json
     outputFormat: ['json'],
 
-    // Optional - Specify labels that you would like associated to your scan
-    //
-    // i.e.
-    //   label: ["Firefox","master","V12","Linux"]
-    // Default: N/A
     label: [],
 
     // optional - Where the scan results should be saved.
-    // Default: results
     outputFolder: '.aat/results',
 
     // optional - Where the baseline results should be loaded from
-    // Default: baselines
     baselineFolder: '.aat/baselines',
 
     captureScreenshots: false
-  };
+};