How to check and replace UTF BOM characters in a String

[Aditya Kumar6]

How to check and replace UTF BOM characters in a ServiceNow String

We have found that while using flow designer to send data via web service integrations or doing general string data processing an unprompted UTF-8 BOM character is added by the flow designer.

This can break 3rd party systems integrations or a general nuisance while working with strings.

You can use the below code to check for and replace these UTF-8 BOM characters and create a sanitized data input for your flow to work flawlessly J

var aa = '0014�'; // String input

aa = aa.replace(/^\uFEFF/gm, "").replace(/^\u00BB\u00BF/gm,"");

for(var i = 0;i<aa.length;i++){

  console.log("Test:" + aa[i]);

}

Happy CODING 😉

[Ahmed10]

I noticed that concatenating using pills adds unexpected and unwanted BOM characters. I wonder why that happens.

[Aditya Kumar6]

Yes!!  Thank you. That is a problem. I am not sure when this started but it is big problem when building payloads for third parties.

[Liam Powell]

Looks to be an issue with using Chromium based browsers with flow designer. See this KB: Using flow designer in Chromium based browsers (eg. Chrome 105, Microsoft Edge 105 etc.) causes unex...