Page goes blank when clicking on columns with parenthesis

[dulti]

Anaconda, python=3.8.8, pandas=1.2.3, dtale=1.40.1
Windows 10, Chrome 89.0.4389.90
When I'm clicking on the column headers with parenthesis in them, the whole page goes blank. Drops two errors in the JS console, see screenshot.

Found some older closed issues which addressed the same problem, but with periods and commas.
The column names look like this:

 0   Q1                                         3093 non-null   int64  
 1   Total Traffic(MB)                          3093 non-null   float64
 2   Downlink Throughput(Kbps)                  3093 non-null   float64
 3   Uplink Throughput(Kbps)                    3093 non-null   float64
 4   Downlink TCP Retransmission Rate(%)        3093 non-null   float64
 5   Video Streaming Download Throughput(Kbps)  3093 non-null   float64
 6   Video Streaming xKB Start Delay(ms)        3093 non-null   int64  
 7   Web Page Download Throughput(Kbps)         3093 non-null   float64
 8   Web Average TCP RTT(ms)                    3093 non-null   int64  
 9   Q2_1                                       3093 non-null   int32  
 10  Q2_2                                       3093 non-null   int32  
 11  Q2_3                                       3093 non-null   int32  
 12  Q2_4                                       3093 non-null   int32  
 13  Q2_5                                       3093 non-null   int32  
 14  Q2_6                                       3093 non-null   int32  
 15  Q2_7                                       3093 non-null   int32  

[dulti]

Now I've removed parens from column names, everything works as it should except for the column #4 - it has got the percentage sign in it, has the same effect.

[aschonfeld]

@dulti Got it, I'll dig into this. Thanks for all the detail 🙏

[aschonfeld]

Already got a fix. I'll let you know when I released a hotfix for it. Sorry for the inconvenience. If you get a sec please toss your ⭐ on the repo. Thanks!

Screen.Recording.2021-03-21.at.2.18.01.PM.mov

[dulti]

Amazing! Thanks a lot! I sure will!

[aschonfeld]

v1.40.2 is now available on pypi and should be on conda-forge shortly. Thanks again for your help