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HTTPS to HTTP redirect for a single page

Web servers : Apache + nginx

Redirecting a single page with HTTPS to the page with HTTP. Server configuration: Apache + nginx. SSL is enabled for the whole web site, so all pages are served with HTTPS. But there is a need to make just one single page to be with HTTP. Directives for .htaccess file:

RewriteEngine On

RewriteCond %{HTTP:HTTPS} on [NV]

RewriteRule ^(page\.html)$ http://%{HTTP_HOST}/$1 [R=301,L,QSA]

HTTPS to HTTP redirect for a single page in detail

-- Enable runtime rewriting engine

RewriteEngine On

-- If HTTPS is present

RewriteCond %{HTTP:HTTPS} on [NV]

-- Then, when a page name and extension correspond to the search group in parentheses, form for it a URI with HTTP

RewriteRule ^(page\.html)$ http://%{HTTP_HOST}/$1 [R=301,L,QSA]


  • RewriteCond %{HTTP:HTTPS} on [NV] is not the only way to detect if HTTPS is present. Moreover, for some server configurations other directives may be more suitable, like RewriteCond %{SERVER_PORT} 443 for example. The point is to find out somehow if HTTPS is on. So it should probably be checked by practice what is going to work in a particular case.
  • QSA is used to keep the existing query string, if there is any, when the replacement URI also contains a query string. So that in the end both query strings are to be combined. More on the subject: http://httpd.apache.org/docs/2.2/rewrite/flags.html#flag_qsa

Aliosque subditos et thema


CSS. Target Firefox only


CSS targeting Firefox web browser only: This text is red in Firefox HTML / XHTML. Code: <p>This text is red in Firefox</p> CSS. Code: @-moz-document url-prefix() {p {color: #f00;}} Unlike the method of styling elements for Opera browser only, it is essentially a hack - since the rule originally is intended for a different purpose. But lack of support in browsers other than Firefox allows to isolate code for use by Firefox web browser only. [ 1 ] Other browsers with Gecko web browser engine, like SeaMonkey 1.0+ or older Netscape 9.0, also support the hack. [ 2 ] Various versions of Internet Explorer, Google Chrome, Opera, Safari react to the hack as they are meant to - these browsers ignore the whole code of the Firefox specific hack. [ 3 ] There is also one more browser where text gets red - ELinks, an advanced text-based web browser with some support for CSS.

Web browsers for DOS


Arachne : Dillo : DOSLYNX : Lynx : Links : ELinks Web browsers for DOS may be looked at as existing roughly in two categories. Web browsers which can be installed without excessive efforts + work stably within their capability. And the rest of the web browsers of functionality more or less limited or problematic. The major web browsers for DOS include applications with GUI and text-based browsers. The graphical web browsers for DOS are several versions of Arachne - GPL version, Arachne Labs version, Ray Andrews version - and Dillo. As well as DR-WebSpyder based on Arachne and WebSpyder's variation - Lineo Embrowser. Text-based web browsers for DOS are a little bit more numerous: DOSLYNX, lynx, links, elinks. The graphical web browsers for DOS even if being prominent among DOS web browsers for their capabilities are definitely inferior in comparison with major web browsers for Windows, Linux or Mac OS X due to the restrictions of the DOS nature, small user and developer base, some other reasons.