Title: Bulk optimization always cancels?
Last modified: August 11, 2017

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# Bulk optimization always cancels?

 *  Resolved [tmh23](https://wordpress.org/support/users/tmh23/)
 * (@tmh23)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/bulk-optimization-always-cancels/)
 * I am trying to bulk optimize images and it will optimize 1 or 2 and then the 
   next one says ‘canceled’ and it just hangs up until I refresh the page. If i 
   try it again it does the same thing. Please help.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [TinyPNG](https://wordpress.org/support/users/tinypng/)
 * (@tinypng)
 * [8 years, 9 months ago](https://wordpress.org/support/topic/bulk-optimization-always-cancels/#post-9410508)
 * Hi there!
 * Thank you for contacting us! Sorry to hear that you have problems with the plugin.
 * We had another user report this issue as well. Unfortunately we were not able
   to reproduce this issue in any of our environments and we are currently awaiting
   feedback from the other user to get to the bottom of the issue.
 * If you want to help us as well, could you please send us a message at [support@tinypng.com](https://wordpress.org/support/topic/bulk-optimization-always-cancels/support@tinypng.com?output_format=md)
   so we can give you further instructions?
 * Otherwise we will let you know once we have solved the issue!
 *  [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.
 *  [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.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Bulk optimization always cancels?’ is closed to new replies.

 * ![](https://ps.w.org/tiny-compress-images/assets/icon-256x256.png?rev=3448487)
 * [TinyPNG - JPEG, PNG & WebP image compression](https://wordpress.org/plugins/tiny-compress-images/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/tiny-compress-images/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/tiny-compress-images/)
 * [Active Topics](https://wordpress.org/support/plugin/tiny-compress-images/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/tiny-compress-images/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/tiny-compress-images/reviews/)

## Tags

 * [Bulk Optimize](https://wordpress.org/support/topic-tag/bulk-optimize/)
 * [pantheon](https://wordpress.org/support/topic-tag/pantheon/)

 * 3 replies
 * 3 participants
 * Last reply from: [kevcom](https://wordpress.org/support/users/kevcom/)
 * Last activity: [8 years, 8 months ago](https://wordpress.org/support/topic/bulk-optimization-always-cancels/#post-9458030)
 * Status: resolved