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Testing and Issues

You can test this app and submit issues during the testing period of the JavaScript Contest, Stage 2 contest.

Entries with serious issues will not be able to win the contest, but even minor issues might be important for overall results.


by rating


Fair Quokka Mar 31, 2020 at 13:09
The contest task is not completed. The design of the app does not comply with the provided mockups in many aspects.

The overall speed of the app is poor:
– Initial loading takes too long.
– Animated stickers result in a dramatic fall in performance.

The app doesn't include fixes for critical issues identified during Stage 1. Other issues:
– Missing support for the majority of media types.
– Shared Media is not implemented.
– Photo viewer and uploading photos not implemented.
– Media blinks when opening chats.
– Incorrect last seen timestamps and chat previews.
– Missing emoji flags.


> Clarification regarding shared media – not available for groups, please kindly check the attachment #1.

> We are unable to upload photos as files, they are sent as photos (📎 > Document), we apologise for not mentioning this in the original review. As for viewer – sometimes minified photo may get stuck not expanding for the full size, this is really confusing.

> Only 10 of 268 country flags are supported – please see the attachment #2.
macOS 10.15.3, Chrome 80.0.3987.
Sacred Gorilla Mar 31, 2020 at 16:16
-Shared Media IS implemented. (to open it click user nickname when chat, or right side menu)
- you can upload and download photos, also you can enlarge them.
- there are few emoji flags
- most issues from stage 1 have been fixed(still tdlib but with caching)
- unsupported types are maps(because required api) and polls.
- i did lots of work to make stickers faster, and smooth scroll, but i agree they works slow. That's why stickers may blinking, but u can scroll many stickers without crashes.
- what's wrong with chat previews?
- All contest tasks are completed!!!!
- Fully agree with other issues


-I agree. I did not pay enough attention to the groups
-Viewer first displays the smallest photo, and when it loads, the largest, I think the photo has only one size, so the photo does not expand.
- I agree. I used sprite lists from the current web client.
Nobody added any issues yet...