<template type="amp-mustache"> not rendering

[leopuglia-a]

Description

amp-mustache templates are not being rendering in gmail. There is a display: none !important; style being added to it coming from the file /css/ampshared.css as you can see in the screenshot bellow:

The expected behavior is to have the following from the screenshot bellow, taken from the amp playground with the exact same html code used in gmail.

Reproduction Steps

using amp-mustache version 0.2 on gmail to render an json object like

{
    "items": [
        {
            "fullname": "",
            "carousel_items": [
                {
                    "image_url": "",
                    "image_alt": "",
                    "redirect_link_url": ""
                },
                {
                    "image_url": "",
                    "image_alt": "",
                    "redirect_link_url": ""
                },
                {
                    "image_url": "",
                    "image_alt": "",
                    "redirect_link_url": ""
                },
                {
                    "image_url": "",
                    "image_alt": "",
                    "redirect_link_url": ""
                },
                {
                    "image_url": "",
                    "image_alt": "",
                    "redirect_link_url": ""
                }
            ]
        }
    ]
}

Relevant Logs

No response

Browser(s) Affected

No response

OS(s) Affected

No response

Device(s) Affected

No response

AMP Version Affected

No response

[ychsieh]

I suspect this is more of a feature request as we might not be supporting rendering amp-mustache now. The example you shared within playground works because it is on web, rather than embedded in gmail app. Are you seeing this across both iOS and Android?