Forwarding slots #1824
Description
Not sure what the best way to frame this problem is, but: there currently needs to be a one-to-one (or one-to-zero) correspondence between slots in a child component, and slotted elements in the parent component, otherwise content goes missing. In some situations, that's a problem: REPL
Say we had a <Modal> component with a <slot></slot> and a <slot name="header"></slot>. If we wanted to lazily load that with a <Lazy> component whose implementation looked like this...
{#await loader() then mod}
<svelte:component this={mod.default} on:close {...props}>
<slot></slot>
</svelte:component>
{/await}
<script>
export default {
computed: {
props: ({ loader, ...props }) => props
}
};
</script>...there's no way to 'forward' that header content.