After redirecting on ActionFilterAttribute event the consequences of clearing all headers are losing all session data and data in TempData storage. It's safer to redirect from an Action or don't clear headers when redirection is taking place. Note that if your docker-compose file references an image, the --pull option will not actually pull the image if there is one already. No-cache doesn't mean "don't cache this" (that would be no-store).

To answer the question, there are two players here, the client (request) and the server (response). I just want to point out that if someone wants to prevent caching ONLY dynamic content, adding those additional headers should be made programmatically. In addition to the headers consider serving your page via https. On IE6-8, FF1.5-3.5, Chrome 2-3, Safari 4, and Opera 9-10, these https://forex-review.net/okcoin-review/ headers caused the page to be requested from the server when you click on a link to the page, or put the URL directly in the address bar. That covers about 99% of all browsers in use as of Jan '10. I found that all of the answers on this page still had problems.

This works because ADD will always fetch the file/URL and the above URL generates random data on each request, Docker then compares the result to see if it can use the cache. This goes in your root .htaccess file but if you have access to httpd.conf that is better. This code uses the FilesMatch directive and the Header directive to add Cache-Control Headers to certain files. Public - may be cached in public shared caches.Private - may only be cached in private cache.No-Cache - may not be cached.No-Store - may be cached but not archived.

With no-store, if the user ends his session by navigating to another domain and then goes back, the only way for browser to know what to display is to get the initial page again from the server. However, cacheing headers are unreliable in meta elements; for one, any web proxies between the site and the user will completely ignore them. You should always use a real HTTP header for headers such as Cache-Control and Pragma.

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Use this middleware where-ever you intend to turn caching off. Client would ask server if it has new version of data using those headers and if the answer is no it will serve cached data. Where GITHUB_REF is a branch name (e.g. main) whose latest commit hash is used.

If the server returns no-store, it's not going to hit the cache, no matter what the client request type. If the client request was no-store, it doesn't matter what the server returns, it won't cache. If the client doesn't specify a request type, the server will dictate it with Cache-Control.

• I looked it up and as it turns out, their flush caching facility is not available to me in the wordpress dashboard as it is a subdirectory /wp/ installation.
• I have a few RUN commands in my Dockerfile that I would like to run with -no-cache each time I build a Docker image.
• Even if "no-cache" is in response, intermediate cache server can still save the content to non-volatile storage.
• No-store is effectively the full do not cache directive and is intended to prevent storage of the representation in any form of cache whatsoever.
• General differences between browser history and the normal HTTP caching are described in a specific sub-section of the spec.
• So now anything related to the docker is gone and docker cache is completely deleted , like you have a fresh docker installation .

How to force Docker for a clean build of an image

I'm told to prevent user-info leaking, only "no-cache" in response is not enough. You can use the built-in cache attribute to prevent caching. You can also decorate some of the actions with this attribute if you need them to be non-cacheable, instead of decorating the whole controller. Also, just for good measure, make sure you reset the ExpiresDefault in your .htaccess file if you're using that to enable caching. On a more positive note, policies regarding physical access to computers, software installation, and the like will put you miles ahead of most firms in terms of security.

I looked it up and as it turns out, their flush caching facility is not available to me in the wordpress dashboard as it is a subdirectory /wp/ installation.

HTML meta tags vs HTTP response headers

I must clarify that no-cache does not mean do not cache. In fact, it means "revalidate with server" before using any cached response you may have, on every request. JQuery calls back to a controller action that returns results in JSON format.

• Also look into their offical docs for more ways to invalidate docker cache.
• To answer the question, there are two players here, the client (request) and the server (response).
• The value in the content field is defined as one of the four values below.
• The no-cache directive can include some field names; in which case the response can be shown from the cache except for the field names specified which should be served from the server.
• Find centralized, trusted content and collaborate around the technologies you use most.

Add Cache-Control Headers

So we should use them with cautious overall when we are not in a local/dev environment. These way don't use cache but for the docker builder and the base image referenced with the FROM instruction. Aside from performance, there is a behavior difference with browser history. HTTP 1.1 section 13.13 says that "expiration time does not apply to history mechanisms." The no-cache header describes expiration, and so doesn't apply to history mechanisms such as the back button. Thus, the user can navigate backward to a previous page with no-cache without the server being contacted. As you identified, no-cache doesn't mean there is never caching, but rather that the user agent has to always ask the server if it's OK to use what it cached.

Prevent Caching in ASP.NET MVC for specific actions using an attribute

No-cache tells it to store the response in the cache, and a later request without it might trigger internal cache. If a caching system correctly implements no-store, then you wouldn't need no-cache. Additionally, some browsers implement no-cache like it was no-store. Thus, while not strictly required, it's probably safest to include both.

If the no-cache directive does not specify a field-name, then a cache MUST NOT use the response to satisfy a subsequent request without successful revalidation with the origin server. You should be aware that resources can also be cached in between the server and client. ISP's, proxies, and other network devices also cache resources and they often use internal rules without looking at the actual resource. The good news is that they typically cache for shorter time frames, like seconds or minutes.

At most, one could haveone of each http-equiv declarations; pragma, cache-control andexpires. These are completely outdated when using modern up to date browsers.After IE9 anyway. Chrome and Firefox specifically does not work with these as you would expect, if at all. I really hope this helps someone who reads this far down. I was having the opposite problem - RUN directives were not being cached when I really needed them to. The problem was that I had inadvertently implemented the solution explained above, but couldn't see it.

My current understanding is that it is just for intermediate cache server. Even if "no-cache" is in response, intermediate cache server can still save the content to non-volatile storage. The intermediate cache server will decide whether using the saved content for following request. However, if "no-store" is in the response, the intermediate cache sever is not supposed to store the content. First of all, this question and answer are targeted on "web pages" (HTML pages), not "file downloads" (PDF, zip, Excel, etc).

They include directives to declare what should be cacheable, what may be stored by caches, modifications of the expiration mechanism, and revalidation and reload controls. Also no-store technically means must not store to any non-volatile storage (disk) and release it from volatile storage (memory) ASAP. A client request with no-store shouldn't write to disk or database and is meant to transient. I understand the docker build --no-cache will disable caching for the entire Dockerfile. Any combination of client, or server can dictate what method, or set of methods, to use.

It doesn't work anymore since Chrome 136!

This is effective in making the browser ask for the resource again but doesn't really prevent caching. Generally, you'd better just not specify the HTML meta tags to avoid confusion by starters and rely on hard HTTP response headers. Only the http-equiv values listed in HTML5 specification are allowed.