Custom block is still caching for anonymous users despite getCacheMaxAge() being set to 0 and can't figure out why

quantumized

12/26/22, 12:58 AM

I have a custom Drupal 8 block with class with build() and getCacheMaxAge() functions. getCacheMaxAge() is set to 0 but it is still being cached for anonymous users.

If I put debug code in the build() function I can see it being called when I'm logged in but not for anonymous users.

My code is below. We do have Memcached installed. Would that be causing the issue?

The only other caching modules are core.

<?php
class HeaderPhone extends BlockBase {
  /**
   * {@inheritdoc}
   */
  public function build() {

    $info = geo_location_blocks_get_region();
    $region = $info['region'];
    $tid = $info['tid'];

    return array(
        '#theme' => 'geo_location_header_phone',
        '#region' => $region,
        '#view' => views_embed_view('locations', 'block_3', $tid),
      
    );
  }

  /**
   * @return int
  */
  public function getCacheMaxAge() {
    return 0;
  }
}?>

160

1 + 4

caching

Jaypan

12/26/22, 1:02 AM

You might need to add a max-age to the render array as well, using `'#cache' => ['max-age' => 0]]`.

quantumized

12/26/22, 1:06 AM

Thank you Jaypan, I tried adding #cache to the render array as suggested but the block is still caching for anonymous users.

Jaypan

12/26/22, 6:25 AM

Re-reading your post, memcached could be an issue. You could try disabling it and seeing if the problem persists. Or testing on an environmnent with memcache disabled. The other possibility is the page cache may be caching the whole page for anonymous users.

quantumized

12/26/22, 11:39 AM

I ruled out memcached. I tested the issue on a site copy on a different server without Memcached and the issue is still there.

Score:5

Drupal

4uk4

12/26/22, 6:24 AM

Setting cache max-age to 0 doesn't work if you still have the core module Internal Page Cache enabled.

Read the documentation why you probably want to disable this module or deliver the block with a different method:

Websites that serve personalized content to anonymous users (dynamic, per-session, e.g. a shopping cart) will want to disable the Internal Page Cache module. This module assumes pages are identical for all anonymous users. Those websites can still take advantage of the Dynamic Page Cache module though, or can alternatively do their personalization using JavaScript + AJAX.

https://www.drupal.org/docs/administering-a-drupal-site/internal-page-cache

0 + 1

quantumized

12/26/22, 11:44 AM

Thank you. the Internal Page Cache module was the issue.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Custom block is still caching for anonymous users despite getCacheMaxAge() being set to 0 and can't figure out why

TH: บล็อกที่กำหนดเองยังคงแคชสำหรับผู้ใช้ที่ไม่ระบุชื่อ แม้ว่า getCacheMaxAge() จะถูกตั้งค่าเป็น 0 และไม่สามารถหาสาเหตุได้

RO: Blocarea personalizată este încă memorată în cache pentru utilizatorii anonimi, în ciuda faptului că getCacheMaxAge() este setat la 0 și nu poate înțelege de ce

RU: Пользовательский блок по-прежнему кэшируется для анонимных пользователей, несмотря на то, что для getCacheMaxAge() установлено значение 0, и я не могу понять, почему

VI: Khối tùy chỉnh vẫn đang lưu vào bộ nhớ đệm cho người dùng ẩn danh mặc dù getCacheMaxAge() được đặt thành 0 và không thể hiểu tại sao

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