HTML Title Content in eventSources

[mayhew09]

I would like to ask for a working example of how to supply HTML content for the Event Title through the evenSources URL. The input for eventSources is a string as it is generated from a phpfile and it looks like this ..., "title": "titletext",... but if I change it to e.g. this ..., "html", "<b>titletext</b>",... it doesn't work...

[vkurko]

It should be (see Content for more details):

"title": {"html": "<b>titletext</b>"}