Error trying to modify JSON object in Fiddler

Question

I'm trying to change a JSON object in fiddler so I can test different conditions for varying HTTP responses. However, after changing one string from "OK" to "WARNING", it says there is invalid text (at a different position than I added) and no longer recognizes it as a JSON object.

First I check 'unlock for editing' on the request I want to modify. Using the Inspectors tab I modify it as a 'Raw' value. However, when I click the 'JSON' tab, it says there is an invalid text and is no longer a JSON object.

I've tried modifying it in an editor, changing it in Fiddler itself but to no avail.

Is there another way you might recommend using fiddler to change a JSON object? Thanks for your help

Answer 1

My problem was that the response was encoded. I was able to modify the values once I clicked that yellow bar in the picture below.