Force html no cache

Html how to force no cache for metatags

If you set Javascript, CSS, and images to be retrieved from the cache, the browser is going to look at them individually, not apply the page’s cache-control to them. There may be obscure one-off browsers that screw this up, but generally not the case on major ones Solution 1: If browser is not caching the page there’s no much you can do than using one of them: OR You can’t programatically override browser settings.

Need HTML file to absolutely, positively force no caching in browser

Why? This (unwanted caching) makes development (where the HTML files change in some way per iteration) very inconvenient

Simply open your browser’s developer tools. By default, this disables caching. There’ll be a checkbox for disabling caching here, if you’ve changed it in the past.

Html5 meta tag cache-control no longer valid?, In the beginning of code you need to use this: Then create cache.manifest file with content of what you want to cache i.e CACHE MANIFEST # 2010-06-18:v2 # Explicitly cached ‘master entries’.

How to make index.html not to cache when the site contents are changes in AngularJS website?

Yes, that is the correct way. You have to set the Cache-Control header to let the browsers know that they don’t have to cache any content for that request.

( Pragma & Cache-Control is one and the same thing but from the different HTTP specification. See the answer here: Difference between Pragma and Cache-control headers?)

See one of the related answer here: How to burst yeoman index.html cache

As mentioned in the comments it’s really the server configuration you want to be looking at but you haven’t mentioned your setup. We run our AngularJS site with a .NET backend using IIS.

We update our site regularly and have had issues in the past with JS and CSS resources caching but we’ve solved it through the following settings:

We use gulp to build our AngularJS application and as part of that we append a version number to the querystring of our main application CSS and Javascript files that change frequently. For example:

Server Configuration

In the root web.config we specify that we don’t want to the index.html to cache by setting the cache-control , Pragma and Expires request headers as well as the max-age to 0.

• IIS Client Cache: https://docs.microsoft.com/en-us/iis/configuration/system.webserver/staticcontent/clientcache
• Cache-Control HTTP Header : https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control
• Pragma HTTP Header: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Pragma
• Expires HTTP Header: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Expires

By setting content value to 0 , browsers will always load the page from the web server.

Caching web page and the NO-CACHE meta tag, There is a way to prevent caching. Add a pseudo URL parameter like ?_=1012903911 (see spacebug.com/solving_browser_caching_problem_of_ajax-html) – jao Feb 29, 2012 at 15:08 Possibly Expires ( web-caching.com/mnot_tutorial/how.html#EXPIRES …

Does any meta tag on html page can affect caching policies for fetching scripts, links and any other resources?

To answer the question «Will resources requested from a non-cached page still be able to come from cache?», your HTML pages cache setting (whether done through server headings, meta tags, or IIS/htaccess) has ABSOLUTELY no bearing on how linked resources are requested/served. If you set Javascript, CSS, and images to be retrieved from the cache, the browser is going to look at them individually, not apply the page’s cache-control to them. There may be obscure one-off browsers that screw this up, but generally not the case on major ones

Need HTML file to absolutely, positively force no, Simply open your browser’s developer tools. By default, this disables caching. There’ll be a checkbox for disabling caching here, if you’ve changed it in the past. Share Improve this answer answered Nov 10, 2019 at 2:49 Brad 154k 48 337 510 Add a comment

How to force the browser to cache a page .html?

If browser is not caching the page there’s no much you can do than using one of them:

You can’t programatically override browser settings. It would be a security issue!

Even if you have there are other factors to consider.

Note that some browsers have a file size limit for caching . keep html below 25Kb if you can and external resources like css, js etc. below 1Mb, but for browser specifics see: here and here

You can check browser.cache.disk.max_entry_size on some browsers and you can approximate the length with document.getElementsByTagName(‘html’)[0].outerHTML.length if it is not possible to precalculate the sizes of your files.

Your server needs to appropriately set «Last-Modified» and «Expires»

This will only increase the likelihood of caching if it is enabled though, not force it. You might consider using local storage if it is enabled and caching is not (some people will just disable caching altogether to cope with 1 particular site)

You have to add this metatag :

How to prevent Chrome from caching index.html (and, When my server renders index.html, it injects some cache busting witchcraft there so that scripts are forced to reload if the version changes. If I do nothing, mobile Chrome wont even bother to ask if there is a new version of index.html. If I add the following to the rendered index.html

Источник

Disable browser caching with meta HTML tags

The correct minimum set of headers that works across the most important browsers:

Cache-Control: no-cache, no-store, must-revalidate Pragma: no-cache Expires: 0

Web Pages (HTML)

For the Web Pages (HTML) add the following tags to the page(s) you want to keep browsers from caching (the code must be in the section of your page, for example right after tag):

 http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />  http-equiv="Pragma" content="no-cache" />  http-equiv="Expires" content="0" />

.htaccess (Apache)

IfModule mod_headers.c> Header set Cache-Control "no-cache, no-store, must-revalidate" Header set Pragma "no-cache" Header set Expires 0 IfModule>

Java Servlet

response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); response.setHeader("Pragma", "no-cache"); response.setDateHeader("Expires", 0);

PHP

header('Cache-Control: no-cache, no-store, must-revalidate'); header('Pragma: no-cache'); header('Expires: 0');

ASP

Response.addHeader "Cache-Control", "no-cache, no-store, must-revalidate" Response.addHeader "Pragma", "no-cache" Response.addHeader "Expires", "0"

ASP.NET

Response.AppendHeader("Cache-Control", "no-cache, no-store, must-revalidate"); Response.AppendHeader("Pragma", "no-cache"); Response.AppendHeader("Expires", "0");

Ruby on Rails

response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate' response.headers['Pragma'] = 'no-cache' response.headers['Expires'] = '0'

Python on Flask

resp.headers["Cache-Control"] = "no-cache, no-store, must-revalidate" resp.headers["Pragma"] = "no-cache" resp.headers["Expires"] = "0"

Google Go

responseWriter.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate") responseWriter.Header().Set("Pragma", "no-cache") responseWriter.Header().Set("Expires", "0")

Categories & Tags

Источник