Log headers sent errors more usefully in thumb.php

Bug: T225197
Change-Id: Ifcb02b3d5794061f27c005b32164ac014f926357

diff --git a/thumb.php b/thumb.php
index 43dd5d4..cf9bd2c 100644 (file)
--- a/thumb.php
+++ b/thumb.php
@@ -409,6 +409,8 @@ function wfProxyThumbnailRequest( $img, $thumbName ) {
        // Send request to proxied service
        $status = $req->execute();
 
+       MediaWiki\HeaderCallback::warnIfHeadersSent();
+
        // Simply serve the response from the proxied service as-is
        header( 'HTTP/1.1 ' . $req->getStatus() );
 
@@ -634,6 +636,8 @@ function wfThumbErrorText( $status, $msgText ) {
 function wfThumbError( $status, $msgHtml, $msgText = null, $context = [] ) {
        global $wgShowHostnames;
 
+       MediaWiki\HeaderCallback::warnIfHeadersSent();
+
        header( 'Cache-Control: no-cache' );
        header( 'Content-Type: text/html; charset=utf-8' );
        if ( $status == 400 || $status == 404 || $status == 429 ) {