Removes leading and trailing whitespace from XML-RPC responses that can break some XML-RPC clients.
As of April 2026, XML-RPC De-whitespacer is a WordPress xmlrpc plugin with 10 active installations and a 5/5 rating from 2 reviews. It has been downloaded 2.9K+ times in total. Requires WordPress 3.0+ and PHP false+. Available on WordPress.org since 2012. Last updated 13 years ago — may have compatibility concerns. Top alternative: Disable XML-RPC.
Uses PHP’s output buffering to buffer XML-RPC responses and strip superfluous whitespace.
Plugins, themes, and any other files executed during the WordPress load process can unintentionally emit whitespace,
such as by including a newline character after an explicit closing “?>” PHP tag instead of letting PHP auto-close the
file.
| WordPress | 3.0+ requiredTested up to 3.4.2 |
| PHP | false+ required |
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