fix(mdx): robust parsing for payload data and ignore sentry pipe noise

lib/mdx-utils.ts

@@ -0,0 +1,46 @@
+export function fixMdxDataProps(content: string): string {
+  let fixedContent = content;
+  let dataIndex = fixedContent.indexOf('data={{');
+
+  while (dataIndex !== -1) {
+    let openCount = 0;
+    let endIndex = -1;
+    const startObj = dataIndex + 6; // index of the first '{' in 'data={{'
+
+    for (let i = startObj; i < fixedContent.length; i++) {
+      if (fixedContent[i] === '{') {
+        openCount++;
+      } else if (fixedContent[i] === '}') {
+        openCount--;
+        if (openCount === 0) {
+          endIndex = i;
+          break;
+        }
+      }
+    }
+
+    if (endIndex !== -1) {
+      // jsonStr is the content INSIDE the outer curly braces
+      const jsonStr = fixedContent.substring(startObj + 1, endIndex);
+      const safeJsonStr = jsonStr.replace(/"/g, '&quot;');
+      const replacement = `data="{${safeJsonStr}}"`;
+
+      // We also need to consume the closing `}` of the `data={{`
+      const nextCharIndex = endIndex + 1;
+      const skipChars =
+        nextCharIndex < fixedContent.length && fixedContent[nextCharIndex] === '}' ? 2 : 1;
+
+      fixedContent =
+        fixedContent.substring(0, dataIndex) +
+        replacement +
+        fixedContent.substring(endIndex + skipChars);
+
+      dataIndex = fixedContent.indexOf('data={{', dataIndex + replacement.length);
+    } else {
+      // Malformed braces, prevent infinite loop
+      break;
+    }
+  }
+
+  return fixedContent;
+}