LiteSpeed Cache Image Optimisation – failed to decode post json

  • Resolved devisionuk

    (@devisionuk)


    4 years, 11 months ago

    Hi,

    Recently installed LiteSpeed Web Server and subsequently installed LiteSpeed Cache plugins on all relevant WordPress installations via WHM admin > LiteSpeed Web Server.

    I’m having a problem with Image Optimisation on one of the sites. The output log for the issue starts with this error:

    [IAPI] failed to decode post json: "hash does not match: ClientCB

    followed by a chunk of HTML code outputting this error:

    Sorry, there was an error. Please be sure JavaScript and Cookies are enabled in your browser and try again

    The full section of the output log error is

    04/08/20 01:02:18.804 [82.71.48.123:59617 1 TyK] [IAPI] failed to decode post json: "hash does not match: ClientCB
04/08/20 01:02:18.832 [82.71.48.123:59617 1 TyK] [IAPI] request key failed: 
04/08/20 01:02:18.836 [82.71.48.123:59617 1 TyK] [IAPI] posting to : https://eu.wp.api.litespeedtech.com/media_sync_data
04/08/20 01:02:18.876 [82.71.48.123:59617 1 TyK] [IAPI] failed to decode post json: "no auth_key"
04/08/20 01:02:18.885 [82.71.48.123:59617 1 TyK] [Ctrl] 301 from https://www.gbstampline.com/wp-admin/admin.php
04/08/20 01:02:18.885 [82.71.48.123:59617 1 TyK] [Ctrl] 301 to https://www.gbstampline.com/wp-admin/admin.php?page=lscache-optimization&type=sync_data
04/08/20 01:02:18.885 [82.71.48.123:59617 1 TyK] [Ctrl] X Cache_control -> no Cache ( 301 to same url )
04/08/20 01:02:18.886 [82.71.48.123:59617 1 TyK] [Ctrl] not cacheable before ctrl finalize
04/08/20 01:02:18.886 [82.71.48.123:59617 1 TyK] [Router] get_uid: 1106
04/08/20 01:02:18.886 [82.71.48.123:59617 1 TyK] [Router] get_role: administrator
04/08/20 01:02:18.887 [82.71.48.123:59617 1 TyK] X-LiteSpeed-Cache-Control: no-cache
04/08/20 01:02:18.887 [82.71.48.123:59617 1 TyK] [Optm] bypass: Not frontend HTML type
04/08/20 01:02:18.887 [82.71.48.123:59617 1 TyK] End response

    I get the same ‘failed to decode json’ error when trying to send the report to LiteSpeed

    Report number: WXSHLWHJ
    Report date: 04/08/2020 14:19:01

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Support qtwrk

    (@qtwrk)

    Hi,

    This usually happens when you have some kind of protective plugins that checks incoming traffic which in this , image server callback are not exactly a “normal” browser request , so it got stopped and inspected ,therefore hit error

    from the log message, whatever this plugin is , it requires javascript and cookie to perform the check.

    Please try disable these kind of plugins or add our IPs into its whitelist

    Best regards,

    Thread Starter devisionuk

    (@devisionuk)

    RESOLVED

    I have resolved this issue. It appears that WP SpamShield was conflicting with the LiteSpeed Cache plugin.

    • This reply was modified 4 years, 11 months ago by devisionuk.
    • This reply was modified 4 years, 11 months ago by devisionuk.
    Plugin Support qtwrk

    (@qtwrk)

    Glad to know you solved it ??

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