Your Environment

• Tested with Firefox 73.0 (browser) and node.js 12.16 (backend) using koa 2.11.0 (framework)
• Windows desktop client, alpine linux server

Steps to Reproduce

1. follow https://markojs.com/docs/body-content/#named-body-content
2. remove the .renderBody as mentioned in the ProTip

Stack Trace

Error: Error: Invalid dynamic tag value 3 index-8f34d635.js:83:19
    emit /static/pages-all/events-light$1.0.5/src/index-8f34d635.js:83
    Marko 15
        emit
        error
        dynamicTag
        render
        forOf
        render
        renderer
        ___rerender
        ___scheduleRerender
        batchUpdate
        ___scheduleRerender
        update
        updateComponents
        updateUnbatchedComponents
        <anonym>

Further investigation

The error is probably thrown beause this if fails: link

so maybe it helps to also check wheter the renderer has a .renderBody property if it is not a function. But I cannot make sure whether this would be the only place that would need to be modified for a proper solution.

Also it seems to render fine on Server-Side, but fails client side (probably already during hydration)