Thanks a lot Lofesa for your kindly reply about image size i have disable wp-rocket so the image thumbnails return to normal but found that there are some thumbnails not appear i have attached the conf file
[pagespeed.zip](https://github.com/apache/incubator-pagespeed-mod/files/2434058/pagespeed.zip) [ Full content available at: https://github.com/apache/incubator-pagespeed-mod/issues/1801 ] This message was relayed via gitbox.apache.org for [email protected]
