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https://issues.apache.org/jira/browse/SLING-10686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17389762#comment-17389762
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Konrad Windszus commented on SLING-10686:
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The TOC JS doesn't reuse the already generated anchors (by the flexmark
extension https://github.com/vsch/flexmark-java/wiki/Extensions#anchorlink) but
instead generates dynamically its own ones in
https://github.com/nghuuphuoc/tocjs/blob/09e1aaa07dc83c50aeb3c30bcd423aa321a9e148/dist/js/toc.js#L209.
> Site: Fix TOC links
> -------------------
>
> Key: SLING-10686
> URL: https://issues.apache.org/jira/browse/SLING-10686
> Project: Sling
> Issue Type: Improvement
> Components: Site
> Reporter: Konrad Windszus
> Priority: Major
>
> Currently the table of contents is generated by
> https://github.com/apache/sling-site/blob/ac12de1fa98bd50958d6d0e606e7cc35f05f99aa/src/main/jbake/templates/toc-brick.tpl
> with the help of the https://github.com/nghuuphuoc/tocjs (which is no longer
> maintained).
> It generates anchor links with a `-1` suffix like
> `https://sling.apache.org/documentation/bundles/scripting/scripting-htl.html#type-conversions-1`
> which don't work when called outside the page.
> To fix this we should either
> 1. switch to the markdown TOC macro (as outlined in
> https://github.com/vsch/flexmark-java/wiki/Table-of-Contents-Extension). This
> requires adjustments though of the TOC macro in almost every MD source as
> this by default only renders entries for h2-h3.
> 2. generate the TOC in the template with another JS library
> 3. generate the TOC in the template purely server-side (requires parsing of
> HTML and probably a lot of groovy code)
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