Javascript error after auto bed compensation

ajcraig99

I am able to probe 5 points using the bed compensation tool but as soon as the window appears to show results, it closes and displays the following error:

I was using 2.01 beta firmware so tried downgrading to 1.21 which hasn't solved the problem.

JavaScript Error

A JavaScript error has occurred so the web interface has closed the connection to your board. It is recommended to 
reload the web interface now. If this happens again, please contact the author and share this error message:

Version: 1.21-RC4
Message: Uncaught TypeError: Cannot read property 'getExtension' of null
URL: http://192.168.1.11/js/dwc.js
Line: 14:286325
Error object: {}

Any ideas?

ajcraig99

I have just run G29 to generate a a height map and it gave the same error when trying to display the results.
Now any time I try to "Show Mesh Grid Heightmap" it crashes with the above error.

dc42

Which version of Duet Web Control are you running? With 2.01 firmware you should use either 1.21.2-dc42 or 1.22.

Firmware 1.21-RC4 is not the same as firmware 1.21 release.

ajcraig99

Just updated to 1.21.2-dc42 and still get the error

JavaScript Error

A JavaScript error has occurred so the web interface has closed the connection to your board. It is recommended to 
reload the web interface now. If this happens again, please contact the author and share this error message:

Version: 1.21.2-dc42
Message: Uncaught TypeError: Cannot read property 'getExtension' of null
URL: http://192.168.1.11/js/dwc.js
Line: 15:296307
Error object: {}

General Info:

Firmware Name:	RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics:	Duet WiFi 1.02 or later
Firmware Version:	1.21 (2018-03-21)
WiFi Server Version:	1.21RC4(08b3)
Web Interface Version:	1.21.2-dc42

ajcraig99

Have also updated the WIFI server to 1.21 to no avail.

ajcraig99

Any suggestions?

dc42

I don't know if this will help, but you could try pressing "Load factory defaults" followed by "Apply settings" on the Settings/User Interface page of DWC.

ajcraig99

Thanks, I will give that a shot when I get home tonight. I found it works no problem on my phone this morning so I updated java on my PC but that didn't work. Will report back

ajcraig99

Still no luck. It works fine on Edge browser though

dc42

@ajcraig99 said in Javascript error after auto bed compensation:

Still no luck. It works fine on Edge browser though

Have you tried DWC 1.22, available at https://github.com/chrishamm/DuetWebControl/blob/master/DuetWebControl-1.22.zip (follow that link, then press Download)?

ajcraig99

@dc42

Just installed 1.22, no luck.

 × JavaScript Error

A JavaScript error has occurred so the web interface has closed the connection to your board. It is recommended to reload the web interface now. If this happens again, please contact the author and share this error message:

Version: 1.22
Message: Uncaught TypeError: Cannot read property 'getExtension' of null
URL: http://192.168.1.11/js/dwc.js
Line: 15:296307
Error object: {}

JoergS5

@ajcraig99 There was a thread here:
https://github.com/mrdoob/three.js/issues/4927

with different possibilities, one of them chrome having problems with WebGL. And one quick check was to call
https://get.webgl.org/
whether this page works.

arefin86 created this issue in mrdoob/three.js

closed Error creating WebGL context #4927

ajcraig99

@joergs5

Thankyou, although my graphics drivers were up to date, I reinstalled chrome which solved the issue.

JoergS5

@ajcraig99 That's fine. Sometimes reinstall or reboots solves a problem.

gnatman

Im getting a similar issue. Though my error reads;
A JavaScript error has occurred so the web interface has closed the connection to your board. It is recommended to reload the web interface now. If this happens again, please contact the author and share this error message:

Version 1.22
Message: Uncaught TypeError:rememberedGCodes.indexOf is not a function
url:http://ipaddressofprinter/js/dwc.jc
Line: 1175:69
Error object: {}

it makes it hard to type in a gcode command to move the head. it does it after bed leveling too. I thought it might have been from my filament sensors but it wasn't from that.

T3P3Tony

@gnatman your DWC is out of sync with the firmware i think. I would grade to the latest stable firmware and DWC:
https://github.com/dc42/RepRapFirmware/releases/tag/2.01

make sure you read the Whats New file for all releases in between your current one and 2.01:
https://github.com/dc42/RepRapFirmware/blob/dev/WHATS_NEW.md