diff --git a/php-transformer/src/HtmlToBlocks/HtmlTransformer.php b/php-transformer/src/HtmlToBlocks/HtmlTransformer.php
index 9f223c2..1933760 100644
--- a/php-transformer/src/HtmlToBlocks/HtmlTransformer.php
+++ b/php-transformer/src/HtmlToBlocks/HtmlTransformer.php
@@ -1202,6 +1202,7 @@ private function captureInlineSvgFallback(DOMElement $element, array &$fallbacks
     private function captureScriptFallback(DOMElement $element, array &$fallbacks): void
     {
         $boundedHtml = $this->boundedFallbackHtml($this->safeFallbackHtml($element));
+        $boundedBody = $this->boundedFallbackText(trim($element->textContent ?? ''));
         $fallbacks[] = array_merge(array(
             'type'            => 'html',
             'reason'          => 'script_requires_runtime',
@@ -1218,6 +1219,9 @@ private function captureScriptFallback(DOMElement $element, array &$fallbacks):
             'html'            => $boundedHtml['html'],
             'html_bytes'      => $boundedHtml['bytes'],
             'html_truncated'  => $boundedHtml['truncated'],
+            'body'            => $boundedBody['text'],
+            'body_bytes'      => $boundedBody['bytes'],
+            'body_truncated'  => $boundedBody['truncated'],
         ), $this->fallbackProvenance);
     }
 
@@ -1258,6 +1262,27 @@ private function boundedFallbackHtml(string $html): array
         );
     }
 
+    /**
+     * @return array{text: string, bytes: int, truncated: bool}
+     */
+    private function boundedFallbackText(string $text): array
+    {
+        $bytes = strlen($text);
+        if ( $bytes > 2000 ) {
+            return array(
+                'text'      => substr($text, 0, 2000) . '...',
+                'bytes'     => $bytes,
+                'truncated' => true,
+            );
+        }
+
+        return array(
+            'text'      => $text,
+            'bytes'     => $bytes,
+            'truncated' => false,
+        );
+    }
+
     /**
      * @return array<string, string>
      */
diff --git a/php-transformer/tests/fixtures/parity/html-h2bc-gap-primitives.json b/php-transformer/tests/fixtures/parity/html-h2bc-gap-primitives.json
index 4d10957..1d7964a 100644
--- a/php-transformer/tests/fixtures/parity/html-h2bc-gap-primitives.json
+++ b/php-transformer/tests/fixtures/parity/html-h2bc-gap-primitives.json
@@ -13,7 +13,7 @@
   },
   "operation": "html_transformer.transform",
   "input": {
-    "content": "<main><div class=\"decorative-placeholder\" style=\"min-height:48px\" aria-hidden=\"true\"></div><div class=\"media-shell\"><img src=\"logo.svg\" alt=\"Logo\" width=\"120\" height=\"80\"></div><dl><dt>Term</dt><dd>Definition</dd></dl><ul class=\"checks\"><li>Parent<ul><li><span class=\"accent\">Child</span></li></ul></li></ul><section class=\"local-widget\"><h2>Signup</h2><form action=\"/signup\"><label>Email <input name=\"email\" placeholder=\"you@example.com\"></label></form><script type=\"module\" src=\"/widget.js\">hydrate()</script></section><figure class=\"code-window\"><figcaption>theme.json</figcaption><pre><code class=\"language-json\">{&quot;version&quot;:2}</code></pre></figure><div class=\"code-frame\" data-filename=\"functions.php\"><pre><code class=\"language-php\">&lt;?php add_action();</code></pre></div></main>"
+    "content": "<main><div class=\"decorative-placeholder\" style=\"min-height:48px\" aria-hidden=\"true\"></div><div class=\"media-shell\"><img src=\"logo.svg\" alt=\"Logo\" width=\"120\" height=\"80\"></div><dl><dt>Term</dt><dd>Definition</dd></dl><ul class=\"checks\"><li>Parent<ul><li><span class=\"accent\">Child</span></li></ul></li></ul><section class=\"local-widget\"><h2>Signup</h2><form action=\"/signup\"><label>Email <input name=\"email\" placeholder=\"you@example.com\"></label><label><input type=\"checkbox\" name=\"agree\" value=\"yes\" required> Agree</label></form><script type=\"module\" src=\"/widget.js\">hydrate()</script></section><figure class=\"code-window\"><figcaption>theme.json</figcaption><pre><code class=\"language-json\">{&quot;version&quot;:2}</code></pre></figure><div class=\"code-frame\" data-filename=\"functions.php\"><pre><code class=\"language-php\">&lt;?php add_action();</code></pre></div></main>"
   },
   "expected_blocks": [
     { "path": "blocks.0", "name": "core/group" },
@@ -45,10 +45,15 @@
     { "path": "blocks.0.innerBlocks", "assert": "count", "count": 7 },
     { "path": "fallbacks", "assert": "count", "count": 2 },
     { "path": "fallbacks.0.controls.0.placeholder", "assert": "equals", "value": "you@example.com" },
+    { "path": "fallbacks.0.controls.1.type", "assert": "equals", "value": "checkbox" },
+    { "path": "fallbacks.0.controls.1.label", "assert": "equals", "value": "Agree" },
+    { "path": "fallbacks.0.controls.1.required", "assert": "equals", "value": true },
     { "path": "fallbacks.0.context.parent_tag", "assert": "equals", "value": "section" },
     { "path": "fallbacks.1.attributes.src", "assert": "equals", "value": "/widget.js" },
     { "path": "fallbacks.1.context.parent_tag", "assert": "equals", "value": "section" },
     { "path": "fallbacks.1.html", "assert": "equals", "value": "" },
+    { "path": "fallbacks.1.body", "assert": "equals", "value": "hydrate()" },
+    { "path": "fallbacks.1.body_truncated", "assert": "equals", "value": false },
     { "path": "serialized_blocks", "assert": "contains", "value": "<figure class=\"wp-block-image is-resized\"><img src=\"logo.svg\" alt=\"Logo\" width=\"120\" height=\"80\"/></figure>" },
     { "path": "serialized_blocks", "assert": "contains", "value": "<li>Parent<!-- wp:list -->" },
     { "path": "serialized_blocks", "assert": "contains", "value": "theme.json" },