• Resolved MitchellAU

    (@mitchellau)


    I have a problem where some of our articles return a blank page. It seems to be random ATM and seems to affect Safari on desktop. We have separate mobile caching and this doesn’t seem to be affected. The only solution is to manually purge ALL caches.

    Guest Mode is Off.

    I can’t replicate ATM as have cleared caches but we post articles at least one/twice a day and it is happening most days.

    I hope you can shed some light on this problem.

    Report number is URSZOVMA

    • This topic was modified 4 years, 5 months ago by MitchellAU.

    The page I need help with: [log in to see the link]

Viewing 9 replies - 1 through 9 (of 9 total)
  • Plugin Support qtwrk

    (@qtwrk)

    Hi,

    what do you mean by “ATM” ?

    and how exactly does the white screen shows ?

    please do me a screenshot , and check the HTML source code , see if it shows anything in comment

    Best regards,

    Thread Starter MitchellAU

    (@mitchellau)

    By ATM I meant At The Moment – sorry, badly written.

    This page is blank in Safari – desktop

    Screenshot 1 – Network view Loading time keeps going up.

    Screenshot 2 – Elements view

    I’m going back to try defaults.

    • This reply was modified 4 years, 5 months ago by MitchellAU.
    • This reply was modified 4 years, 5 months ago by MitchellAU.
    • This reply was modified 4 years, 5 months ago by MitchellAU.
    • This reply was modified 4 years, 5 months ago by MitchellAU.
    • This reply was modified 4 years, 5 months ago by MitchellAU.
    Plugin Support qtwrk

    (@qtwrk)

    Hi,

    2 screenshots give me 403 error , please verify

    did it work on default setting ?

    Best regards,

    Thread Starter MitchellAU

    (@mitchellau)

    The problem came up again but I think it has something to do with seperate cache for mobile. I’ve turned of quic.cloud as well. Hopefully get back asap on this.

    Can you try the screenshots links again? They work for me.

    Plugin Support qtwrk

    (@qtwrk)

    Hi,

    it is still giving me 403

    maybe you have IP whitelist or something

    please try use google driver or something like that

    Best regards,

    Thread Starter MitchellAU

    (@mitchellau)

    Apologies
    Screenshot 1
    Screenshot 2

    Currently, all lscache settings are at default and Safari is loading all pages correctly.

    Curiously, I’ve turned CDN/Quic.cloud off but, according to headers, it still seems to be serving from CDN?

    Next, I will re-enable mobile cache and see what happens.

    Plugin Support qtwrk

    (@qtwrk)

    Hi,

    what does response header shows ?

    if you turn off in CDN -> QC CDN , that won’t work , that just controls the API communication , you need to go to QC dashboard -> domain -> CDN -> CDN config -> toggle “Bypass CDN”

    most important part is that if you can reliably reproduce it ?

    Best regards,

    Thread Starter MitchellAU

    (@mitchellau)

    The response headers of posts that are blank are a bit diffeent to posts that are correct in Safari.

    Summary
    URL: https://www.croakey.org/calls-to-address-widespread-violence-against-nurses/
    Status: 304
    Source: Memory Cache
    Address: 163.47.20.24:443
    
    Request
    :method: GET
    :scheme: https
    :authority: www.croakey.org
    :path: /calls-to-address-widespread-violence-against-nurses/
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    Cookie: __hssc=241571421.12.1638327872063; __hssrc=1; __hstc=241571421.eb56cbccade84317fcf18be9f8228a1f.1637316207819.1638254368713.1638327872063.30; hubspotutk=eb56cbccade84317fcf18be9f8228a1f; _ga=GA1.2.1296100194.1637316196; _gat=1; _gid=GA1.2.1996628553.1638141655; __wpdm_client=94ec7c609197cda7486d06550aebf6df
    Accept-Encoding: gzip, deflate, br
    If-None-Match: "276744-1638255035;;;"
    Host: www.croakey.org
    User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.15
    Accept-Language: en-au
    Referer: https://www.croakey.org/
    Connection: keep-alive
    
    Response
    :status: 304
    Content-Type: text/html; charset=UTF-8
    Content-Security-Policy: upgrade-insecure-requests
    X-XSS-Protection: 1; mode=block
    Link: <https://www.croakey.org/wp-json/>; rel="https://api.w.org/", <https://www.croakey.org/wp-json/wp/v2/posts/160384>; rel="alternate"; type="application/json", <https://www.croakey.org/?p=160384>; rel=shortlink
    Referrer-Policy: no-referrer-when-downgrade
    Date: Wed, 01 Dec 2021 03:09:36 GMT
    X-Content-Type-Options: nosniff
    ETag: "276744-1638255035;;;"
    x-qc-pop: OC-AU-SYD-101
    x-tec-api-origin: https://www.croakey.org
    x-tec-api-version: v1
    Server: LiteSpeed
    x-tec-api-root: https://www.croakey.org/wp-json/tribe/events/v1/
    expect-ct: max-age=7776000, enforce
    Strict-Transport-Security: max-age=31536000
    x-qc-cache: hit
    x-pingback: https://www.croakey.org/xmlrpc.php

    I dont really know much about headers but these 2 lines look odd.
    If-None-Match: “276744-1638255035;;;”
    ETag: “276744-1638255035;;;”

    ..compared to a correct post:-
    If-None-Match: “286301-1638322750;br”
    ETag: “286301-1638322750;br”

    Additionally, this line is present in correct posts but not on the blank posts.
    Alt-Svc: h3=”:443″; ma=2592000, h3-29=”:443″; ma=2592000, h3-Q050=”:443″; ma=2592000, h3-Q046=”:443″; ma=2592000, h3-Q043=”:443″; ma=2592000, quic=”:443″; ma=2592000; v=”43,46″

    • This reply was modified 4 years, 5 months ago by MitchellAU.
    • This reply was modified 4 years, 5 months ago by MitchellAU.
    Thread Starter MitchellAU

    (@mitchellau)

    I’ve just posted on the QUIC.Cloud Slack forum about this. I’ve had Quic.Cloud CDN on bypass the last month or so with no problems. Reactivated QC CDN yesterday and today our latest post shows a blank page on Safari and Chrome again!!

    So I have to manually clear the site cache. I’m beginning to wonder whether another CDN would be better than QC.

Viewing 9 replies - 1 through 9 (of 9 total)

The topic ‘White Screen – Desktop Only’ is closed to new replies.