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Disable browser caching with meta HTML tags

March 01, 2016
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
Where:
  • Cache-Control is for HTTP 1.1
  • Pragma is for HTTP 1.0
  • Expires is for proxies
For the Web Pages (HTML) add the following <meta> tags to the page(s) you want to keep browsers from caching (the code must be in the <head> section of your page, for example right after <title> tag):
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta http-equiv="Pragma" content="no-cache" />
<meta 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")

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