Inline CSS always commented by HeadStyle ViewHelper

[weierophinney]

It looks like the inline style definition is not correctly printed by HeadStyle view helper.

Considering the following one:

<?php $this->headStyle()->captureStart(); ?>
@media only screen and (max-width: 620px) {

div[class*="pd-left20"]{padding:0 0 0 20px !important;}
td[class*="resetPadding"]{padding:0 0 0 0 !important;}
td[class*="padding20"]{padding:20px 0 20px 0 !important;}

}
<?php $this->headStyle()->captureEnd(); ?>

The whole block will be commented out.

I tried disabling auto escaper but escaping is hardcoded into HeadStyle implementation.

Actually, after a deep look in the code, I don't get why CSS content is always commented via <!-- -->:

[0]

 $html = '<style type="text/css"' . $attrString . '>' . PHP_EOL
            . $escapeStart . $indent . $item->content . PHP_EOL . $escapeEnd
            . '</style>';

$escapeStart and $escapeEnd can be null only for conditional CSS which is not a regular use case.

The examples from documentation are giving me similar commented output. [1]

[0] https://github.com/zendframework/zend-view/blob/master/src/Helper/HeadStyle.php#L328
[1] https://docs.zendframework.com/zend-view/helpers/head-style/#capturing-style-declarations

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Originally posted by @tworzenieweb at zendframework/zend-view#165

[weierophinney]

@tworzenieweb

The whole block will be commented out.

The comments are used for backward compatibility in old browsers and are ignored by CSS.

But today these comments are obsolete and can be removed without problems.

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Originally posted by @froschdesign at zendframework/zend-view#165 (comment)