Vimeo: How to activate captions by default?

Question

We have embedded player on our site.
VTT French captions were been uploaded.

We need the captions to be activated by default.

Currently its not happening. The captions are available, CC button is there, and we can switch them ON while playing. But we do want the captions to show automatically.

The embed code is as follows:
<iframe class="embed-responsive-item" src="https://player.vimeo.com/video/[videoid]?texttrack=fr" frameborder="0" allow="autoplay" allowfullscreen></iframe>

According to Vimeo' docs texttrack=fr is what should make the captions to show automatically.

The video has language set to English.

Any idea on how to solve our problem?

Answer 1

Just wanted to add that at this point in time, Vimeo language variables are case-sensitive and "texttrack=fr-ca" does not work. But "texttrack=fr-CA" does work. Vimeo has identified this as an issue and may make the variable non-case-sensitive in the future.

Answer 2

I was able to find an answer.
For those who faces the same issue: make sure that language in the embedding code matches the language selected, when captions were uploaded within Vimeo.

Embed code we had was texttrack=fr, but captions were uploaded as Language - French (Canada).
We changed to texttrack=fr-ca and all is good now.

You may also need to play with type of data you upload: Subtitles or Captions