}

</script>

However, on the client side (i.e. in JavaScript's ``EventSource``), there is no built-in way

to see which topic a certain message is coming from. So if this (or any other meta information)

is important to you, you need to include it in the message's data (e.g. by adding a key to the

JSON, or a `data-*` attribute to the HTML).

However, on the client side (i.e. in JavaScript's ``EventSource``), there is no

built-in way to know which topic a certain message originates from. If this (or

any other meta information) is important to you, you need to include it in the

message's data (e.g. by adding a key to the JSON, or a ``data-*`` attribute to

the HTML).

..tip::