data-trigger conflicts with bootstrap popover.

[abixalmon]

Fancybox takes over bootstrap's data-trigger on Popover and Tooltip.

[fancyapps]

Why would you want to have fancybox and popover on the same element. You have to choose one of them, because triggering both of them on click event ... just does not make any sense.

Tooltip, however, works perfectly fine, because it gets triggered on hover action. Disable back focus using backFocus option (or simply add data-back-focus="false" yo your elements) to prevent triggering tooltip after closing fancybox.

[abixalmon]

No data-gallery added.

<a class="btn btn-lg btn-danger" role="button" data-toggle="popover" data-trigger="focus" title="" data-content="And here's some amazing content. It's very engaging. Right?" data-original-title="Dismissible popover">Dismissible popover</a>

When clicked it loads fancybox.

[fancyapps]

Hmm, but you have data-trigger and that is also used to trigger fancybox on other element. This is how you can disable that -

$(document).off("click.fb-start", "[data-trigger]");

[ionesculiviucristian]

Maybe consider adding vendor prefixes for data attributes in the future?

[bez4pieci]

Please reopen this. data-trigger is used for specifying the way the Bootstrap popover appears, namely, hover or click. At least, pleaese add this potential clash issue to documentation.

[RomanMV]

Please reopen this. Uncomfortable seek out all the places where this attribute may be used. Moreover, you can not immediately understand that it is because of this attribute that the functional that worked before.
The best idea would be to rename the attribute to something like this "data-fancybox-trigger"

[aliechti]

Why is it self initializing at all?

[fancyapps]

Sorry, I forgot to notify here that data-trigger has been renamed to data-fancybox-trigger some time ago, see https://github.com/fancyapps/fancybox/releases