see pr: niklasvh#3097

Squashed commit of the following:

commit d2d83ad
Author: Joey Bloom <15joeybloom@gmail.com>
Date:   Tue Jul 25 16:34:13 2023 -0500

    Set the document clone iframe container's size via the style attribute

    This prevents CSS rules from overriding the iframe's size which would
    compromise the screenshot

src/dom/document-cloner.ts

@@ -506,6 +506,8 @@ const createIFrameContainer = (ownerDocument: Document, bounds: Bounds): HTMLIFr
     cloneIframeContainer.style.border = '0';
     cloneIframeContainer.width = bounds.width.toString();
     cloneIframeContainer.height = bounds.height.toString();
+    cloneIframeContainer.style.width = bounds.width.toString() + 'px';
+    cloneIframeContainer.style.height = bounds.height.toString() + 'px';
     cloneIframeContainer.scrolling = 'no'; // ios won't scroll without it
     cloneIframeContainer.setAttribute(IGNORE_ATTRIBUTE, 'true');
     ownerDocument.body.appendChild(cloneIframeContainer);