layouts/shortcodes/hubspot_contact_form.html

 {{ if and (isset .Params "portalId") (isset .Params "formId")}}
-  <!--[if lte IE 8]>
-    <script
-      charset="utf-8"
-      type="text/javascript"
-      src="//js.hsforms.net/forms/v2-legacy.js"
-    ></script>
-  <![endif]-->
+<div id="hubspot-form-fallback" class="alert alert-info">
+  {{ if isset .Params "fallbackMessage" }}
+    {{ .Params.fallbackMessage | markdownify }}
+  {{ else }}
+    <p>
+      If you are unable to access the contact form, please reach out to us at
+      <a href="mailto:membership.coordination@eclipse-foundation.org"
+        >membership.coordination@eclipse-foundation.org</a
+      >
+      for assistance with your membership inquiry.
+    </p>
+  {{ end }}
+</div>
 
+<!--[if lte IE 8]>
   <script
     charset="utf-8"
     type="text/javascript"
-    src="//js.hsforms.net/forms/v2.js"
+    src="//js.hsforms.net/forms/v2-legacy.js"
   ></script>
-  <script>
+<![endif]-->
+
+<script
+  charset="utf-8"
+  type="text/javascript"
+  src="//js.hsforms.net/forms/v2.js"
+></script>
+<script>
   hbspt.forms.create({
-    region: 'na1',
+    region: "na1",
     portalId: '{{ index .Params "portalId"}}',
     formId: '{{ index .Params "formId"}}',
+    onFormReady: function () {
+      document.getElementById("hubspot-form-fallback").classList.add("hidden");
+    },
   });
-  </script>
-{{ end }}
\ No newline at end of file
+</script>
+{{ end }}

package.json

@@ -4,7 +4,7 @@
   "main": "webpack.min.js",
   "author": "Christopher Guindon",
   "license": "EPL-2.0",
-  "version": "0.1.17",
+  "version": "0.1.18",
   "bugs": {
     "url": "https://gitlab.eclipse.org/eclipsefdn/it/webdev/hugo-solstice-theme/-/issues"
   },
@@ -23,7 +23,7 @@
   "readmeFilename": "README.md",
   "dependencies": {
     "axios": "^1.7.7",
-    "eclipsefdn-solstice-assets": "0.1.19",
+    "eclipsefdn-solstice-assets": "0.1.20",
     "json2yaml": "^1.1.0",
     "toml": "^3.0.0"
   },