• Resolved scooterlord


    Hello and thanks for your work in this wonderful plugin – despite the issues that occur. I apologize for the long post!

    I am having problems resetting my cache and I guess all of your users would appreciate a best practice guide. Since it is not working as I would expect it to, here are the steps I am taking every time I need to change something to one of the static files:

    – Change stylesheet version number through functions.php
    – Clear cache
    – Clear assets
    – Browser cache re-check status

    …but still the cache refuses to update to my latest files.

    – My iPhone mobile browser cache is not resetting. I have tried a million things and it still won’t reset remotely unless I manually clear the cache. The expected behavior would be to change my file, and then go to browser cache and re-check/reset status so that the new expire headers update from this point onwards. I would expect every time I clear my assets/change browser expire headers to see a different filename/version of filename on the asset which would essentially reset everthing.

    – I still haven’t found a way to reset some updated font files. I just can’t! How can I reset them?

    – I have connected the plugin with cloudflare. Is this a complete replacement to the cloudflare plugin?

    – Create a one-button to reset all kinds of cache – html, assets, reset browser expire headers so that when you click on this button, it forces all content to renew instead of having to manually click on everything.
    – Please store my settings when I temporarily deactivate caching/assets caching, and please trigger a reset to everything when I re-activate it.

    In the meantime, what steps can I take to completely re-new everything to all devices? I have used plugins like Prevent browser cache, but this beats the purpose of having a cache plugin, let alone that when you stop using it, the assets/files still revert to their state before using the plugin.

    Looking forward to your reply!

Viewing 10 replies - 1 through 10 (of 10 total)
  • Plugin Support Kasia – WPMU DEV Support


    Hello @scooterlord ,

    Are you sure that this issue is caused by Hummingbird? By any chance are you hosted on Siteground? Because I can replicate this issue with CSS files not being updated on their hosting without Hummingbird enabled.
    But when checking on another Hosting there are no issues like that. Clearing browser cache instanly works there.

    – I have connected the plugin with cloudflare. Is this a complete replacement to the cloudflare plugin?

    In Hummingbird, CloudFlare connection allows only for Browser Caching control.

    – Please store my settings when I temporarily deactivate caching/assets caching, and please trigger a reset to everything when I re-activate it.

    I’m not sure if I understand correctly, Hummingbird already has option to save settings and data and also reset it. It’s in the Hummingbird -> Settings -> Data&Settings

    kind regards,

    Thread Starter scooterlord


    Hello and thanks for your reply!

    – No I am not hosted on Siteground.
    – Thanks for clarifying about the cloudflare plugin use
    – Regarding the save of settings, for some reason it seems to be working now!

    ..when you mention about clearing browser cache, you mean on the device itself? This works here as well, but this beats the purpose of using browser cache – you can’t force users to reset their browser cache whenever you do a change on the static elements (css, js, fonts, whatever). The whole caching procedure should be completely transparent to users.

    Plugin Support Adam – WPMU DEV Support


    Hi @scooterlord

    Asking users to clear browser cache manually it’s not expected procedure, indeed. But if you got CloudFlare connected to Hummingbird (if you are actually using CloudFlare of course) then could you, please, check one more thing?

    Does it make a difference if you specifically use the “Clear cache” button on “Hummingbird -> Dashboard” page (on the left of “View Documentation” button there)?

    I mean using this very button instead of the one on Page Caching page and separately on Asset Optimization page.

    Also, are only mobile devices affected or all? I’m sorry if I missed that but I just want to make sure.

    Kind regards,

    Thread Starter scooterlord


    Hello again and thanks for the reply!

    Before commenting, I would like to say that this button to clear ‘everything’ was what I was expecting for the plugin to have. Unfortunately, it’s not very well placed up there – this is the first time I see it! I would suggest that you should have it as a clearer option – either on it’s own page in the plugin and/or add it on the admin navigation as a separate button with clear wording, like ‘Clear everything’ or ‘Clear cache, assets & cloudflare’. It will make a huge difference to users, trust me.

    Yes, I have cloudflare connected indeed. Clicking on the button makes absolutely no difference to my mobile browser – unless of course I use private browsing.

    Same applies for desktop as well, I need to ctrl-refresh to receive the new static files. The problem is that if I don’t see the changes immediately, then users don’t see the changes either.

    Then again, the expected behavior for me would be the following:

    – Make changes to my static files – and nothing else, eg change versions etc
    – Click on this magic ‘Clear everything’ button
    – View changes after a couple of mins

    Is there anything more expected from a developer’s end? Is versioning necessary after all?

    Plugin Support Nithin – WPMU DEV Support


    Hi @scooterlord,

    The “Clear Cache” button as pointed in the previous reply only helps with clearing Page Cache it doesn’t clear browser cache. The action what “Clear Cache” button on “Hummingbird > Dashboard” would do would be similar to the “Clear cache” button under Hummingibird > Caching > Page Caching > Clear Cache.

    This was suggested in order to see if you notice any difference. The action performed by both buttons would be the same.

    At the moment, Hummingbird only helps with controlling browser cache in Cloudflare once you have connected with Cloudflare. So if you have page cache enabled in Cloudflare and also have page cache enabled in Hummingbird then HUmmingbird will not be able to cleare Cloudflare cache in anyway.

    Just to be clear is the issue with only the browser cache not getting cleared or is it only with page caching?

    Yes, I have cloudflare connected indeed. Clicking on the button makes absolutely no difference to my mobile browser – unless of course I use private browsing.

    Could we know what changes were made that isn’t noticing in the mobile browser once the page cache is cleared?

    To ensure we are on the same page,is it possible to share a screenshot of the anomalies you are noticing so that we could have a better idea regarding this and bring into our Hummingbird teams attention if needed.

    Please advise if I have missed out anything. Looking forward to your response so that we could help get you sorted asap.

    Kind Regards,

    Plugin Support Predrag – WPMU DEV Support


    Hello, we haven’t heard back from you in a while so we will close down this ticket, if you have any followup questions feel free to reopen it.


    Thread Starter scooterlord


    I apologize for not replying, for some reason I couldn’t see the second-to-last-reply.

    The button that has been suggested in the dashboard reads:
    ‘This will clear your Page, Cloudflare & Asset optimization caches’

    …so essentially, it can’t be the same as the ‘Clear page cache’ at the top of the screen.

    No matter what I do, it doesn’t seem to reset mobile browser cache – let me clarify on this though. What I am expecting to see is any change on the website reflect on any browser. When on mobile, I keep refreshing but nothing changes, however, going private browsing, I can see the new changes. This means, though, that whoever visited the site up to this point can’t see the new changes.

    As a temporary solution I have added a short expiration time of 8 hours for the assets, so user can take the changes within the day.

    What you have described above raises new questions. Yes, I am using Cloudflare cache as well. Shouldn’t I? I am not really sure how the two co-operate with each other. Is it advised to remove Cloudflare caching? Then… what’s the purpose of the integration?

    Plugin Support Patrick – WPMU DEV Support


    Hi @scooterlord

    Could you please run this test:

    – Enable the Cloudflare on the development mode, try to replicate the issue.

    In case the problem persists, kindly let us know the following information.

    Theme Name:
    Is it a WordPress single or Multisite:
    WordPress version:
    PHP Version:

    About the integration, it should only clear the browser cache, but I can see we already have a feature request to clear all Cloudflare caches from Hummingbird.

    Let us know the result you got.
    Best Regards
    Patrick Freitas

    Thread Starter scooterlord


    Hello again,

    Regarding your tests:
    – Custom theme
    – Latest WordPress version (5.5.1)
    – PHP version: 7.4.10

    Development mode or not, it makes no difference, and I guess it’s due to the reason mentioned below:

    …I did some further testing and from what I can see the problem is that when you reset your assets cache the produced hummingbird filename is exactly the same. How would you expect it to be realoded from browsers since it is cached with the exact same filename every time you clear your cache?

    For example, hummingbird produces the following automated asset filename:

    If you clear your asset cache, then a ‘new file’ is produced, but with the same filename, which is already browser-cached.

    If the filename or the version of the filename (eg filename?v=2) was different every time you clear your assets, I guess the problem would be solved.

    Plugin Support Predrag – WPMU DEV Support


    Hi @scooterlord,

    Thanks for the additional information from your tests, we have forwarded this to our devs to check it out further from their end.


Viewing 10 replies - 1 through 10 (of 10 total)
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