Script Error Display

[treesa21]

We have Schneider Automation Server with Andover Continumm B3810 series. In the webstation the web graphics is displaying an error message pop up "Script error in DocumentLoadEvent(Bind) ReferenceError:MutationEvent is not defined do you want to continue script." After we click "Ok" it still keeps popping up. Also the graphics is not loading value. For example, OAT reading XXX. 

Could you please assist in resolving this display error in the PC.

[dsmith]

We are getting the same issue.

[sesa373560 · Accepted solution]

Hi Team,

We had the same issue at a site here. The issue is something to do with Mutation Events inside of chrome and Microsoft Edge. We have found a solution in the browsers with "flags"

• Open Chrome or Edge
• Type in the search bar 'chrome://flags or Edge://flags'
• Search flags for 'Mutation'
• In the default drop down box select enable and relaunch the page

When the page reloads it should work again. 

Link below is where I found the fix

https://support.ixon.cloud/hc/en-us/articles/15187062105756-Script-error-MutationEvent-is-not-define...

[CraigEl]

@treesa21 this is a known issue in EBO. "MutationEvent is not defined" Javascript errors are displayed after Chromium based browsers (Chrome or Microsoft Edge) are updated to version 127. 

As referenced in Mutation events will be removed from Chrome  |  Blog  |  Chrome for Developers, Google has deprecated these Mutation events and replaced them with a different function. EBO hotfixes are available for all currently supported EBO versions, your local EBO System Integrator or SE branch will have access to the hotfixes.

[Regis_Martin]

Thank you very much for this really helpful solution. I met the same issue with the Web access to EBO.

[amiteshgh]

Thanks for your valuable information