Thread:Extension talk:WYSIWYG/getimagesize error in CKeditorLinker.php

With the WYSIWYG-CKeditor package 1.5.6_0 [B551+12.01.2015] I encountered an error in my MW 1.24 installation that getimagesize reported an error that it failed to open the stream. At least in my installation the WYSIWYG directory is located in $IP/extensions, therefore the following line 143 in WYSIWYG/CKeditorLinker.php

$imgSize = getimagesize( dirname(__FILE__) . '/../../..' . $url); //30.12.14 RL

is pointing one directory level too high. After I changed the line to

$imgSize = getimagesize( dirname(__FILE__) . '/../..' . $url);

it worked for me.