There is some escaping/encoding problem. see below the “\/”
POST CONTENT:
{“name”:”26500″,”permalink”:”http:\/\/mywebsite.staging.wpengine.com\/valuation\/”,”slug”:”valuation”,”title”:”Valuation”,”excerpt”:””,”source_type”:”page”,”source”:”wp_putp”,”apikey”:”AtOpq8PN0aIoAzfsL9QN0z1bPbRD7U”}
HEADERS ▲
Content-Type
application/x-www-form-urlencoded
User-Agent
WordPress/4.9.4; https://mywebsite.staging.wpengine.com
Connection
close
Accept-Encoding
deflate, gzip
Referer
https://api.webhookinbox.com/i/9fjuzkGh/in/
Content-Length
214
Accept
*/*
Host
api.webhookinbox.com