Title: kevcom's Replies | WordPress.org

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# kevcom

  [  ](https://wordpress.org/support/users/kevcom/)

 *   [Profile](https://wordpress.org/support/users/kevcom/)
 *   [Topics Started](https://wordpress.org/support/users/kevcom/topics/)
 *   [Replies Created](https://wordpress.org/support/users/kevcom/replies/)
 *   [Reviews Written](https://wordpress.org/support/users/kevcom/reviews/)
 *   [Topics Replied To](https://wordpress.org/support/users/kevcom/replied-to/)
 *   [Engagements](https://wordpress.org/support/users/kevcom/engagements/)
 *   [Favorites](https://wordpress.org/support/users/kevcom/favorites/)

 Search replies:

## Forum Replies Created

Viewing 2 replies - 1 through 2 (of 2 total)

 *   Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    In
   reply to: [[TinyPNG - JPEG, PNG & WebP image compression] Bulk optimization always cancels?](https://wordpress.org/support/topic/bulk-optimization-always-cancels/)
 *  [kevcom](https://wordpress.org/support/users/kevcom/)
 * (@kevcom)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/bulk-optimization-always-cancels/#post-9458030)
 * I am no longer experiencing the issue.
 * I have my blog hosted on Pantheon, with a reverse proxy through Fastly.
 * When trying to access the Bulk Optimization plugin via our own domain name, images
   would “cancel” and I would get console errors
 * `503 error: /wp-admin/admin-ajax.php`
    and `Cannot read property 'image_sizes_optimized'
   of null`
 * But when I access the plugin via the admin panel directly on the Pantheon environment,
   and not through our domain, it works no problems.
 *   Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    In
   reply to: [[TinyPNG - JPEG, PNG & WebP image compression] Bulk optimization always cancels?](https://wordpress.org/support/topic/bulk-optimization-always-cancels/)
 *  [kevcom](https://wordpress.org/support/users/kevcom/)
 * (@kevcom)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/bulk-optimization-always-cancels/#post-9455709)
 * I’ve also been experiencing this issue, I will send you folks an email.

Viewing 2 replies - 1 through 2 (of 2 total)