(!) Memory Leak in website demo page

[GitSquared]

I am experiencing a critical memory leak issue when trying to access https://apexcharts.com/javascript-chart-demos/

I'm using Firefox Developer Edition 62.0b15 (64-bit), on Debian 9.5 "Stretch".

Here is a video proof (youtube link). You can clearly see the CPU going crazy at around 15 to 20 seconds in the video, only a few moments after loading the page. Then, the memory starts filling up rapidly, eventually eating through swap space, at that point i have no choice but to kill Firefox to keep my system stable.

I do have a few addons installed on the browser, but i do not believe that they have any impact on the issue.

Is anyone able to reproduce this behavior?

[arkhenstone]

Yup, tried on two computer, RAM usage gone wild, had to restart my PC. Tried on Firefox Linux and Chrome Windows.

[paulocoghi]

Is anyone able to reproduce this behavior?

Yes, same issue here. Firefox 62.0b15 (64-bit) (non-developer) on Ubuntu 16.04.5 64bit

[junedchhipa]

@GitSquared
Confirmed the bug.
The memory leak is due to the mixed chart. I disabled each chart one by one and disabling mixed charts made the page responsive. Otherwise, my firefox was also crashing every time I loaded the demo page.

I will investigate the mixed chart rendering, thanks for reporting. Looks like combining all three types - area/line/column doesn't works at the moment for firefox.

You can check the demo page now and see if it still crashes.

[GitSquared]

@junedchhipa It's working for me now. Thanks for the quick response. Closing.

[arkhenstone]

@junedchhipa Dashboard demo has the same problem

[junedchhipa]

@arkhenstone I will check the Dashboard too. Combo chart (line/area/column) seems the main culprit. I will try to fix it quickly so I don't have to go to each and every place to disable Mixed Charts ;)

[GitSquared]

uh... actually, https://apexcharts.com/javascript-chart-demos/heatmap-charts/ has this issue too... So yeah, i think it's in the lib. @junedchhipa I'm reopening and i'll let you close when you fix the "upstream" issue.

[junedchhipa]

Ah! ok. No worries, keep it open. I need to do some more testing on firefox, I guess.

[GitSquared]

I believe @arkhenstone reported this issue to also happen in Chrome, nah?

Tried on Firefox Linux and Chrome Windows.

Is this still true or is this issue Firefox-specific?

[junedchhipa]

Ah! right. If the same problem persists in Chrome as well, then this is not browser specific. Reverting title change

[junedchhipa]

I have fixed the issues which were crashing Firefox when viewing demo pages.

@arkhenstone can you please test the demo page as well as the dashboards?
@GitSquared can't reproduce the "heatmap" issue in firefox/chrome. Can you please test again and if error persists, give more info?

Thanks

[GitSquared]

@junedchhipa Everything's working all right. Tested pretty much every link accessible from the demo homepage. 👍