Unable to reproduce issue on reported chrome version 67.0.3396.87 and latest canary 69.0.3486.0 Using Ubuntu 17.10 and Mac 10.12.6 by following the below steps. 
1.Opened the link-https://googlechrome.github.io/samples/play-return-promise/
2.Clicked play button - observed that the audio played and there is no error on Devtools -> console.

Attached screencast for reference.

@reporter : Could you please confirm if this issue is specific to Debian so that it would be really helpful for further triaging.

Note : As, TE team cannot provide screencast with voice recording on Linux, provided screencast of Mac.

Thanks.!

Deleted: 862145.mp4 750 KB

	862145.mp4 750 KB View Download

Sorry for the delay...

Unfortunately I had no chance to check this on any other linux system at this time. I hope to manage it the next days...

In the meantime I checked it with the original chrome version from google and that works fine. (after clicking the button, the music starts, no output on the console) I was expecting a difference in the JS-version, but they are the same.
I don't know if Chromium and Chrome are comparable in that case and if it is useful for you. If not then *shit*.

Chrome version I used:
|-------------------------------------------------------
Google Chrome	67.0.3396.99 (Offizieller Build) (64-Bit)
Überarbeitung	a337fbf3c2ab8ebc6b64b0bfdce73a20e2e2252b-refs/branch-heads/3396@{#790}
Betriebssystem	Linux
JavaScript	V8 6.7.288.46
Flash	29.0.0.140 /home/lx21/.config/google-chrome/PepperFlash/29.0.0.140/libpepflashplayer.so
User-Agent	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36
Befehlszeile	/usr/bin/google-chrome-stable --flag-switches-begin --flag-switches-end
Ausführbarer Pfad	/opt/google/chrome/google-chrome
Profilpfad	/home/lx21/.config/google-chrome/Default
|-------------------------------------------------------

And here is the complete versions info of my chromium:
|-------------------------------------------------------
Chromium	67.0.3396.87 (Entwickler-Build) built on Debian 9.4, running on Debian 9.5 (64-Bit)
Überarbeitung	878cd31214ac27a3996927cd5c9c138b10c9fc8d-refs/branch-heads/3396@{#771}
Betriebssystem	Linux
JavaScript	V8 6.7.288.46
Flash	(Deaktiviert)
User-Agent	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Befehlszeile	/usr/lib/chromium/chromium --show-component-extension-options --ignore-gpu-blacklist --no-default-browser-check --disable-pings --media-router=0 --enable-remote-extensions --flag-switches-begin --flag-switches-end
Ausführbarer Pfad	/usr/lib/chromium/chromium
Profilpfad	/home/lx21/.config/chromium/Default
|-------------------------------------------------------

Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Unable to repro issue on the reported chromium version #67.0.3396.87  on Ubuntu 17.10.The issue seems related to Debian , hence forwarding the issue to Inhouse team to kindly look into the issue.

Adding TE-NeedsTriageFromHYD label.

Thanks.!

Tested the issue on debian 9.5 and Unable to reproduce issue on chromium version 67.0.3396.0 by following the below steps. 
1.Opened the link-https://googlechrome.github.io/samples/play-return-promise/
2.Clicked play button - observed that the audio played and there is no error on Devtools -> console.

Attached screencast for reference.

@reporter : Could you please refer to the screen cast and let us know if anything missed from our end.

Thanks.! 

Deleted: Jul 23 2018 12_23 PM.webm 1.4 MB

	Jul 23 2018 12_23 PM.webm 1.4 MB View Download

No one was able to reproduce this so marking as WontFix.