postman invalid characters in string control characters must be escaped

As an AI language model, I cannot see any code or error messages. However, "invalid characters in string control characters must be escaped" is an error message that may occur in Postman when there are invalid characters in a string that need to be escaped.

Control characters, such as tabs, newlines, and carriage returns, must be escaped in order to be properly processed by the application. If they are not escaped, they can cause unexpected behavior or errors.

To resolve this error, you can try to escape the invalid characters in your string using backslashes (\). For example, if you have a string with a tab character, you can escape it like this:

var myString = "Hello\tWorld";

Alternatively, you can use a function like `encodeURIComponent()` to escape the entire string:

var myString = "Hello\tWorld";
var escapedString = encodeURIComponent(myString);

If neither of these solutions work, you may need to examine the source of the invalid characters and make sure they are properly formatted before sending them to Postman.