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Which File Generates the CSS - Need to tell Caching Which File to Let Pass Through


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I've been suffering a number of issues (detailed elsewhere) with data disappearing on servers using heavy caching to serve up Wordpress. The folks at WPEngine are helping fix this issue so others with DMS installed can benefit.

 

We've narrowed down the issue, but need help identifying which file gets hit directly to generate the CSS.

 

If we can tell them this their team can let it pass through the cache and load.

 

Can anyone help with this. I'm in a chat with the cache team at WPEngine right now.

Thanks,

Andrew

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Posted · Report post

Its ok, i'll try to make my reply more clear.

 

You are making changes o the production site, the production site is cached.

 

When you click save dms creates a new css file using all the settings.. the css file is saved to the uploads folder.

 

If you look at the css files url you will see it has a timestamp, this is so CDN's, browsers etc always get the latest file.

 

WPE is caching the page, so when you click sav and refresh.. you are looking at the cached page and he url for the css is now broken, because the url changed when you clicked save.

 

There *might* be a way we could hack the code to never write a file on save, or to always use the same url but then if you changed a colour or a width for example... your end users would never see the change..

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Posted · Report post

The css is written to a static file in the uploads folder. ive replied to one or two of your other threads.

 

Please try and keep this all in one place.

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Posted · Report post

Sorry simon. I thought this was a better way to handle this.

I'm nearing the point of giving up on fixing this.

 

I'm at wits end without any idea how to proceed.

 

What writes the CSS to the uploads folder? That's the question maybe?

 

- Andrew

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Posted · Report post

I dont understand, on your site the css is saved successfully as a css file.

 

So what exactly is the issue?

 

http://screencast.com/t/cDTFAYtL0uZ

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Posted · Report post

Simon,

 

Here's the use case and problem:

 

  • User Status: Logged In
  • Working in DMS Editor the site looks fine, everything seems to be working as I add, edit, or update items, modules and text on the page. Here's what it looks like http://i.imgur.com/AjS818f.png
  • I Publish the page and refresh a second browser (user status: NOT logged in) where the site is completely styleless. Here's what that looks like: http://i.imgur.com/C458MEc.png
  • I Purge the Cache and refresh the front end and the site is back to normal.

I've spent four hours troubleshooting this with the team at WPEngine and they are trying to help. 

 

Do you have any questions about the problem?

- Andrew

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Posted · Report post

You are editing in the production site.

They cache the page when you click save a new CSS file is created and the old one deleted

You see the old page with the old URL until you clear their cache

Ask them if there is a way to disable the caching on the production site so you can make changes there and not in staging


Sent from my iPad using Tapatalk

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Posted · Report post

Simon,

I've asked them if they can disable the cache, unfortunately not.

Also, I'm NOT making changes on the staging site. I'm making the updates on the production site.

What they've asked me to find out what forces the re-write of the css file.

That way they said they can make sure this executes.

Does that help?

- Andrew

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Posted · Report post

Simon,

Thank you. That's helpful.

Let me ask the WPEngine folks if they can help me with that information.

- Andrew

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Simon,

Unfortunately, WPEngine can't help with that.

Everytime I hit publish I have to Purge the Cache...

 

I'm going to have to move on without a real solution to this on either end.

Thanks though.

- Andrew

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