TYPO3 Fluid: Only SOME HTML tags are not rendered in fluid template

Question

I've a very strange behavior and a question for TYPO3 experts: Some HTML tags are not rendered, the output is like: <form enctype="multipart/form-data" />

But only with the tags <form>, <input>, <label>, <figure>

All the other tags <div>, <p>, <span>, <button>, <h2>, even <script> are working perfectly.

Btw. it has nothing to do with <f:format.html> or <f:format.raw> because I don’t have an output from the system, it’s directly in the template.

Here is my template:

<html xmlns:f="https://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true">
<f:layout name="Default" />

<f:section name="content">

    <f:flashMessages />

    <figure class="test">NOT working - tags rendered as text</figure>
    <form action="">NOT working - tags rendered as text</form>

    <div class="employees">working</div>
    <p class="paragraph">working</p>

</f:section>

Another interesting thing is: The problem also occurs with the official “form” extension from TYPO3 8.7! Exactly the same problem, the mentioned tags are not rendered as HTML!

I hope somebody can help me with this problem. I’m getting crazy with this.

Environment

TYPO3: 8.7.22
PHP: 7.2
Extensions: realURL, DCE, Extensions Builder, Grid Elements, VHS Fluid ViewHelpers, Yoast SEO, news

--- update: added TypoScript and layout file ---

TypoScript my extension (generated by the Extension Builder)

plugin.tx_rmdataschulungen_rmdataschulungen {
    view {
        templateRootPaths.0 = EXT:rmdata_schulungen/Resources/Private/Templates/
        templateRootPaths.1 = {$plugin.tx_rmdataschulungen_rmdataschulungen.view.templateRootPath}
        partialRootPaths.0 = EXT:rmdata_schulungen/Resources/Private/Partials/
        partialRootPaths.1 = {$plugin.tx_rmdataschulungen_rmdataschulungen.view.partialRootPath}
        layoutRootPaths.0 = EXT:rmdata_schulungen/Resources/Private/Layouts/
        layoutRootPaths.1 = {$plugin.tx_rmdataschulungen_rmdataschulungen.view.layoutRootPath}
    }
    persistence {
        storagePid = 106{$plugin.tx_rmdataschulungen_rmdataschulungen.persistence.storagePid}
        #recursive = 1
    }
    features {
        #skipDefaultArguments = 1
        ignoreAllEnableFieldsInBe = 0
        requireCHashArgumentForActionArguments = 1
    }
    mvc {
        #callDefaultActionIfActionCantBeResolved = 1
    }
}

Layout file (generated by the Extension Builder)

<html xmlns:f="https://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true">
    <div class="tx-rmdata-schulungen">
        <f:render section="content" />
    </div>
</html>

TypoScript (output page content)

page = PAGE
page.10 = FLUIDTEMPLATE
page.10 {
   templateName = Default
   templateRootPaths.1 = fileadmin/Resources/Private/Templates/Page
   variables {
     content < styles.content.get
     nav < Navigation 
     searchbox < lib.searchField
   }
}

Can you add your layout file? If this is in the template of a plugin, can you also add the TypoScript and template you use to add content to the page? — Rudy Gnodde
I added the TypoScript (generated by the Extension Builder) and my layout file (also generated by the Extension Builder) — Simon
Can't reproduce your problem. It looks like something parsing the HTML. Try to deinstall all extensions and try again. — Heinz Schilling

Georg Ringer Georg Ringer · Accepted Answer · 2018-12-21T11:41:27

You shouldn't use the concept of variables for such dynamic content because of not only this issue.

Check out this question and my answer for a detailed feedback

TYPO3 Fluid: Only SOME HTML tags are not rendered in fluid template

2 Answers