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https://issues.apache.org/jira/browse/SLING-7549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Radu Cotescu resolved SLING-7549.
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Resolution: Fixed
> <link> tag is not being treated as "self closing" when used in conjunction
> with HTL block statements
> ----------------------------------------------------------------------------------------------------
>
> Key: SLING-7549
> URL: https://issues.apache.org/jira/browse/SLING-7549
> Project: Sling
> Issue Type: Bug
> Components: Scripting
> Affects Versions: Scripting HTL Engine 1.0.32
> Reporter: Paul Bjorkstrand
> Assignee: Radu Cotescu
> Priority: Major
> Fix For: Scripting HTL Compiler 1.0.22-1.4.0
>
>
> When using HTL block statements some tags that are assumed to be "self
> closing" by browsers are not handled in that manner by the HTL engine. This
> can cause hard to find problems with the rendering of the page. in this
> example, the {{<link>}} tag was the culprit.
> I was diagnosing an issue where under a certain set of circumstances all of
> my page's css was not being rendered. This happened to be due a {{<link>}}
> tag that was not closed, but had a block statement added to it:
> {code:java}
> <link data-sly-test="${metadata.prerenderUrl}" rel="prerender"
> href="${metadata.prerenderUrl}">{code}
> That seemingly innocuous tag caused the HTL engine to assume that all
> contents following, (until the the parent head closing tag), to be inside
> that link tag.
> According to the [html5
> spec|https://www.w3.org/TR/2014/REC-html5-20141028/document-metadata.html#the-link-element]
> the content of the {{<link>}} element is empty. Nearly every browser in use
> today treats {{<link ...>}} the same as {{<link .../>}}. Given this, it is
> not a stretch to assume that HTL would treat it in the same manner.
> It is my belief that HTL should mimic the html5 specification. At minimum, I
> would hope to get a clear answer on which HTML specification it follows, or a
> statement that HTL does not/will not follow an HTML specification.
> *Note*: I was unsure if this should be something in the HTL spec or in the
> implementation. Since I found no reference in the specification regarding
> html5/xhtml/html4 compliance, I came here with my request instead. Please let
> me know if this is something that should be addressed at the specification
> level.
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