Uncaught DOMException adjusting attributes

[tomjn]

Bug Description

PHP Fatal error:  Uncaught DOMException: Not Found Error in /srv/www/..../plugins/amp/includes/sanitizers/class-amp-base-sanitizer.php:477

Specifically this in remove_invalid_attribute

		if ( $should_remove ) {
			$element->removeAttributeNode( $node );

[11-Nov-2019 20:12:05 UTC] PHP Fatal error:  Uncaught DOMException: Not Found Error in /srv/www/.../plugins/amp/includes/sanitizers/class-amp-base-sanitizer.php:477
Stack trace:
#0 /srv/www/.../plugins/amp/includes/sanitizers/class-amp-base-sanitizer.php(477): DOMElement->removeAttributeNode(Object(DOMAttr))
#1 /srv/www/.../plugins/amp/includes/sanitizers/class-amp-tag-and-attribute-sanitizer.php(585): AMP_Base_Sanitizer->remove_invalid_attribute(Object(DOMElement), Object(DOMAttr), Array)
#2 /srv/www/.../plugins/amp/includes/sanitizers/class-amp-tag-and-attribute-sanitizer.php(302): AMP_Tag_And_Attribute_Sanitizer->process_node(Object(DOMElement))
#3 /srv/www/.../plugins/amp/includes/sanitizers/class-amp-tag-and-attribute-sanitizer.php(287): AMP_Tag_And_Attribute_Sanitizer->san in /srv/www/.../plugins/amp/includes/sanitizers/class-amp-base-sanitizer.php on line 477

Steps to reproduce

We're unsure of the content/URL that's generating this at the moment

Additional context

• WordPress version: 5.2.3
• Plugin version: 1.3.0
• Gutenberg plugin version (if applicable): n/a
• AMP plugin template mode:
• PHP version: 7.2.24-1+ubuntu16.04.1+deb.sury.org+1
• OS: Ubuntu
• Browser: unknown
• Device: unknown

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Changelog entry

[westonruter]

@tomjn This should have been fixed in 1.4.1 via #3682

Please update and confirm.