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Bug #78844

closed

HTML5: use self-closing tags only if allowed

Added by Markus Mächler over 7 years ago. Updated over 5 years ago.

Status:
Closed
Priority:
Should have
Assignee:
Markus Mächler
Category:
Frontend
Target version:
Candidate for patchlevel
Start date:
2016-11-30
Due date:
% Done:

100%

Estimated time:
TYPO3 Version:
7
PHP Version:
Tags:
Complexity:
easy
Is Regression:
No
Sprint Focus:

Description

In the frontend rendering of RTE content, empty tags should only be converted to self-closing tags if allowed by the HTML5 standard.
The Problem ist that e.g. 

<a id="myspecialanchor"></a>

is converted to

<a id="myspecialanchor" />

which will result in the subsequent content being rendered as a link, too (at least in Google Chrome).

This Problem exists in TYPO3 7.6 and 8.

This is because only specific tags may be self-closing according to the HTML5 specification:

https://www.w3.org/TR/html5/syntax.html#void-elements

Void elements: area, base, br, col, embed, hr, img, input, keygen, link, meta, param, source, track, wbr

The following line should be fixed:

https://github.com/TYPO3/TYPO3.CMS/blob/master/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php#L4964

Moreover, the a notice should be added to the todo-comment in following line

https://github.com/TYPO3/TYPO3.CMS/blob/master/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php#L4074

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