Embed Components Append Semicolon After </iframe> on Save

Issue:
When saving an Embed component that contains an <iframe>, a stray semicolon (;) is appended after the closing </iframe> tag. This character renders visually on the site.

However, the bug only occurs when the embed contains no HTML comments. Adding a comment — either before or after the iframe — prevents the issue.

Example (broken):

<iframe src="..." width="600" height="400"></iframe>

Published Output:

<iframe src="..." width="600" height="400"></iframe>;

Example (working):

<!-- some comment --> 
<iframe src="..." width="600" height="400"></iframe>

or

 <iframe src="..." width="600" height="400"></iframe>
<!-- some comment --> 

Expected Behavior:
The embed should not append any additional characters unless explicitly added by the user.

Actual Behavior:
A semicolon is injected after the closing tag — but only when there are no comments in the markup.

Steps to Reproduce:

1. Add an Embed component with only an <iframe>

2. Save and publish

3. Observe semicolon appearing after the iframe

Workarounds:

• Add a dummy comment anywhere in the embed content (before or after the iframe)

Impact:
Medium – breaks visual polish and introduces confusing behavior for users embedding external content.

Notes:
This may be due to a parser quirk or a serialization artifact that gets bypassed when the content includes an HTML comment.

Suggested Fix:
Sanitize embed output on save to strip unintended trailing characters. Investigate parser behavior for content without comments.