ContributionsMost RecentMost LikesSolutionsRe: POST request data is getting truncated and error Content is not allowed in prolog shown I tried another thing: I used the request content as parameter and checked Post QueryString option(See screenshot). Now it works!!! Re: POST request data is getting truncated and error Content is not allowed in prolog shown Hi Richie, Thanks for your response. As you suggested I tried below things: 1. Sent request with much smaller content with a base64 encoded value. => Result: Still the POST request data is getting truncated. 2. Changed Preferences settings (see screenshot attached). => Result: Still the POST request data is getting truncated. Is there any other setting in Ready API that could have impact? Also, I have attached the screenshot of headers. Regards, Shadab POST request data is getting truncated and error Content is not allowed in prolog shown I am trying to a POST request with data which is in Base64 encoded format. When sending the request, I see that the actual data which is sent by Ready api has been truncated(see the attached screenshot). In the Outline tab, I see below error: org.apache.xmlbeans.xmlexception: error: Content is not allowed in prolog I am not using any other attachment. I am no sure what is wrong here with the test data. Anyone has experience with such issue? Solved