diff --git a/Zotlabs/Module/Item.php b/Zotlabs/Module/Item.php
index 3cc6f8bf2..b90b28eab 100644
--- a/Zotlabs/Module/Item.php
+++ b/Zotlabs/Module/Item.php
@@ -176,8 +176,7 @@ class Item extends Controller {
 
 			// process an authenticated fetch
 
-
-			$sigdata = HTTPSig::verify(EMPTY_STR);
+			$sigdata = HTTPSig::verify(($_SERVER['REQUEST_METHOD'] === 'POST') ? file_get_contents('php://input') : EMPTY_STR);
 			if ($sigdata['portable_id'] && $sigdata['header_valid']) {
 				$portable_id = $sigdata['portable_id'];
 				if (! check_channelallowed($portable_id)) {
diff --git a/Zotlabs/Web/HTTPSig.php b/Zotlabs/Web/HTTPSig.php
index 26088a725..3183a39b1 100644
--- a/Zotlabs/Web/HTTPSig.php
+++ b/Zotlabs/Web/HTTPSig.php
@@ -220,6 +220,11 @@ class HTTPSig {
 			}
 
 			logger('Content_Valid: ' . (($result['content_valid']) ? 'true' : 'false'));
+			if (! $result['content_valid']) {
+				logger('invalid content signature: data ' . print_r($data,true));
+				logger('invalid content signature: headers ' . print_r($headers,true));
+				logger('invalid content signature: body ' . print_r($body,true));
+			}
 		}
 
 		return $result;