Assets with code inside are ignored

[dmitryd]

Example:

        <v:asset.script name="iframe-resizer-init" movable="1">
            iFrameResize({}, ".iframe-responsive-height");
        </v:asset.script>

This does not produce ANY output at all. I traced it down to FluidTYPO3\Vhs\Service\AssetService::manipulateAssetsByTypoScriptSettings():

This shows that the content of the <v:asset.script> and <v:asset.style> will be ignored.