Solution
Check the Application's Properties → Advanced Section → Backslashes must be escaped in expressions.
There is a change in PhixFlow version 9.0.0 which affected escaped backslashes in expressions. This option maintains backwards compatibility. By default this will be ticked for applications created before 9.0.0, and unticked for later applications.
If you need to escape a backslash for an HTTP Collector we recommend:
- Create a new Package
- Associate it to your application
- Move the HTTP Collector to the new Package
- Enable the option for Properties → Advanced Section → Backslashes must be escaped in expressions.
- You will now be able to escape backslashes in your HTTP Collector as required.