Mosaic tile not interpreting html tags in script tag

[yleclanche]

I'm using mustache template in a mosaic tile.
When the page is rendering, the html content of the mustache template is displayed as raw html instead of being interpreted.

Any idea why and how to fix this ?

Thanks.

[fredvd]

AFAIK the tile are rendered using ZPT (zope page templates, not Mustache). Or maybe you mean something different. Can you post the template here?

[yleclanche]

Sorry, I was not very explicit.
I use ZPT for the mosaic tile. But inside my template code, I have some mustache code too.

The issue was in plone.app.blocks-4.1.1-py2.7.egg/plone/app/blocks/utils.py in the resolve function.
The content of the tiles are sent to the elementtree html parser. I guess html tags in a script tags is not valid so tags are escaped.

The solution is a bit ugly. I replaced all my <script type="text/x-mustache-template"> tags to <code> tags in my template. Then I patched the resolve function tu replace <code> tags to <script> tags after the html parser did his work.

def resolve(url, resolved=None):
    """Resolve the given URL to an lxml tree.
    """
    if resolved is None:
        resolved = resolveResource(url)
    if not resolved.strip():
        return None
    try:
        if isinstance(resolved, unicode):
            resolved = resolved.encode('utf-8')
        html_parser = html.HTMLParser(encoding='utf-8',)
        # patch starts here
        htmltree = html.fromstring(resolved, parser=html_parser).getroottree()
        for tag in htmltree.iterfind('.//code[@type="text/x-mustache-template"]'):
            tag.tag = "script"
        # patch ends here
        return htmltree

    except etree.XMLSyntaxError as e:
        logger.error('%s: %s' % (repr(e), url))
        return None

I close this issue because I'm not sure it's a bug.

[hvelarde]

@yleclanche what you're trying to do seems valid to me; we have something similar using Mustache in Zope page templates in collective.upload.

so, it should work here also.

[yleclanche]

The mustache code works in a standard browser view, just not within a custom Mosaic tile template.