Object (and embed) doesn't work being added as an element via HB

[denis-anisimov]

Create an Element with "object" tag.
Set type to "image/svg+xml"
and set data attribute to some SVG image (e.g. use http://tecfa.unige.ch/guides/svg/ex/html5/green-circle.svg URL).
Add the element to the document,
Check it in EDGE.
Result: image is not shown.
For some reasons the svg URL is requested via HEAD http requested not GET.
It works fine in Chrome, FF and Safari.

It works also fine in EDGE if static markup is used.
May be something specific to "data" attribute.

[denis-anisimov]

See hummingbird-demo#184

[Legioth]

What happens if programmatically creating and adding a similar element from the developer console in Edge?

[denis-anisimov]

Works fine.
It works in HB if element is created not via HB API.
See vaadin/flow-demo#206

[Legioth]

Might this be yet another case where it matters whether parameters and attributes are set before or after the element has been attached to the DOM?

[denis-anisimov]

You are right.
It doesn't work in EDGE via the console if element is added to the DOM before it's configured (i.e. create -> add -> set properties).
Works only when it's completely initialized and then added to the DOM.

[denis-anisimov]

Can it be so that vaadin/flow-demo#203 is one more aspect of it ?
I.e. HTML import is added to the DOM before its URL is set......

[Legioth]

Fully possible that it's the same problem with HTML imports as well.

Seems like we'd have to bump the priority of #481 that we put on hold to avoid doing anything premature before we've implemented the new template syntax...

[pleku]

This has been fixed by #481