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Testing and Issues

You can test this app and submit issues during the testing period of the JavaScript Chart 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 Mammoth May 8, 2019 at 10:06
Overall poor performance.

— The design does not comply with the guidelines.
— The graphs are slow when filtering, scrolling and scaling.
— The graphs blink when filtering.
— The graphs take the entire width of the page when viewed from desktop browsers.
LG Nexus 5X, Android 8.1
Tooltip isn't constrained to the chart view and even page frame
iMac 2017 / Chrome / macOS Mojave
Wrong font, black border around edges of chart
macOS 10.14.3, Google Chrome 73.0.3683.103
"Zoom Out" Doesnt work from Chrome
Laptop/Chrome/Windows 10
Filter not working as you can see i choose only the blue but yellow is shown it is lag ?
🔴🔴🔴 Apr 17, 2019 at 11:39
Legend is being renderred offscreen
Mac, Chrome 66.0.3359.139
chart not updating while slider moving, only when you stop moving it
It is possible to make an empty space on in "Zoom in" state
Laptop/Vivaldi/Windows 10
NaN values in tooltip
Windows Laptop, ChromeOS
Pie chart animation is re-triggered on mouse leave
macOS Mojave 10.14.3 Google Chrome Version 73.0.3683.103 (Official Build) (64-bit)
Wrong bar chart render after zoom out.

P.S. can't attach screen record :(
macOS Mojave 10.14.3 Google Chrome Version 73.0.3683.103 (Official Build) (64-bit)
Filters doesn't work. Lines are gone.
Far from design mockups
Dmitry Rumyantsev Apr 17, 2019 at 13:06
Click on pie chart does zoom out.
The message chart incorrect zoom mode.
Touch work ugly in general.
Samsung S8.
Дмитрий Apr 17, 2019 at 13:32
Telegram admins, where is my job? I sent the archive yesterday, the bot accepted and said "Perfect! Would you like to add an URL to your app? Totally OK if not."

I do not see myself in the list, what's the problem ??
Y-axis is not displayed from zero. It’s important at least in stacked charts.
1. Drag scroll to the left side
2. Collapse scroll by left side to right direction
3. See the issue
Somewhere there is a memory leak and looping action. Suddenly, it started to slow down a lot after zooming back to 100%.
Good Job!! =) But immediately noticed a few flaws..
1) empty chart with one data 2) wrong data proportions (apples are much larger) 3) unfinished edges
Pavel Vlasov Apr 18, 2019 at 17:58
All charts trembles while zooming slowly.
Chrome / Windows
Single column chart (Views) - zoom in / out doesn't work correctly at all. Zoom out link is not clickable.
Chrome 73
Wrong timeline (navigator) for pie chart
Chrome 73
Long touch / long click functionality not realized.
Chrome 73
No percentages in tooltip for stacked percentage chart
Chrome 73
Chart change animation looks really cool!
Graph 4 error screen attached
IPhone6, safari
Nobody added any issues yet...