diff --git a/ChangeLog b/ChangeLog
index 56c1918d58..0f30650c83 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -66,6 +66,8 @@ phpMyAdmin - ChangeLog
 - issue #11677 sql-parser and php-gettext collide.
 - issue #11920 Can't disable backquotes in export
 - issue #11911 Inserts via tbl_change.php in VARBINARY columns does not allow using HEX() and MD5()
+- issue #11939 Correct content type for uploaded error reports
+- issue #11940 Silent errors from checking local documentation
 
 4.5.4.1 (2016-01-29)
 - issue #11892 Error with PMA 4.4.15.3
diff --git a/libraries/Util.php b/libraries/Util.php
index dce554081f..53bca2b2c4 100644
--- a/libraries/Util.php
+++ b/libraries/Util.php
@@ -539,7 +539,7 @@ class Util
         if (defined('TESTSUITE')) {
             /* Provide consistent URL for testsuite */
             return PMA_linkURL('http://docs.phpmyadmin.net/en/latest/' . $url);
-        } elseif (file_exists('doc/html/index.html')) {
+        } elseif (@file_exists('doc/html/index.html')) {
             if (defined('PMA_SETUP')) {
                 return '../doc/html/' . $url;
             } else {
diff --git a/libraries/error_report.lib.php b/libraries/error_report.lib.php
index a7184b05bd..1d7741e816 100644
--- a/libraries/error_report.lib.php
+++ b/libraries/error_report.lib.php
@@ -183,7 +183,7 @@ function PMA_sendErrorReport($report)
             array(
                 'method'  => 'POST',
                 'content' => $data_string,
-                'header' => "Content-Type: multipart/form-data\r\n",
+                'header' => "Content-Type: application/json\r\n",
             )
         );
         $context = PMA\libraries\Util::handleContext($context);
@@ -205,7 +205,10 @@ function PMA_sendErrorReport($report)
     }
     $curl_handle = PMA\libraries\Util::configureCurl($curl_handle);
     curl_setopt($curl_handle, CURLOPT_CUSTOMREQUEST, "POST");
-    curl_setopt($curl_handle, CURLOPT_HTTPHEADER, array('Expect:'));
+    curl_setopt(
+        $curl_handle, CURLOPT_HTTPHEADER,
+        array('Expect:', 'Content-Type: application/json')
+    );
     curl_setopt($curl_handle, CURLOPT_POSTFIELDS, $data_string);
     curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
     $response = curl_exec($curl_handle);