You're modifying or removing a header generated by some piece of the server but that header is not being found by the default onsuccess condition. You're modifying or removing a header generated by a CGI script, in which case the CGI scripts are in the table corresponding to always and not in the default table. You're adding a header to a locally generated non-success (non-2xx) response, such as a redirect, in which case only the table corresponding to always is used in the ultimate response. Note also that repeating this directive with both conditions makes sense in some scenarios because always is not a superset of onsuccess with respect to existing headers: The table that corresponds to always is used for locally generated error responses as well as successful responses. When your action is a function of an existing header, you may need to specify a condition of always, depending on which internal table the original header was set in. htaccess I don't exactly know but when more processing is done within Apache adding the condition always might be needed: Header always set Access-Control-Allow-Origin "*" SSLCACertificateFile "/etc/pki/tls/private/" SSLCertificateKeyFile "/etc/pki/tls/private/domain.key" SSLCertificateFile "/etc/pki/tls/private/domain.crt" SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+LOW (ttfotfwoffwoff2css)> Header set Access-Control. Header always set Access-Control-Allow-Origin "*" i did the necessary corrections via htaccess but the problem is not solved. Header set Access-Control-Allow-Origin "*" env=HTTPSĪny way to set Access-Control-Allow-Origin header for https in. Origin ' ' is therefore not allowed access. No 'Access-Control-Allow-Origin' header is present on the requested resource. Header set Access-Control-Allow-Origin "*" So when I dont have this in my htaccess: Header add Access-Control-Allow-Origin Header add Access-Control-Allow-Headers. htaccess the following line which runs for http. Header add Access-Control-Allow-Origin %e env=AccessControlAllowOriginīecause there can only be one CORS domain in the header, you’ll need to get create if you want to use this on multiple domains.I have a site with http and https. This is provided to simplify basic use of CORS. If you have multiple domains and want to set a CORS header based on that domain, you can use a cool hack like this: SetEnvIf Origin "http(s)?://(AccessControlAllowOrigin=$0 Security Note: The examples given below assume a wild-card domain for the Access-Control-Allow-Origin header. If you want to completely disable CORS (which I wouldn’t recommend, but is useful for testing purposes): Header Set Access-Control-Allow-Origin "*"īut as mentioned above, it’s safer to actually set the Access-Control-Allow-Origin to contain the list of domains that your application can request data from (or send data to). Mind the protocol, this would – in this case – only allow HTTPS requests. The above would allow the site that sends that header, to request resources (like AJAX requests or webfonts) from the “ ” domain. We got excellent question from Andreas on adding Access-Control-Allow-Origin on Subdomains. Header Set Access-Control-Allow-Origin "" To enable CORS, you must configure the web server to send an HTTP header that permits remote access to its resources. As you see Access-Control-Allow-Origin '' allows you to access all resources and webfonts from all domains. Thats why the apache config snippet you posted tries to match on the Origin header of the request with this regex. So yes, you need to set the header differently depending on what domain is requesting the site. htaccess or Apache webserver configuration, add headers like these. As stated by the CORS spec, you can have only one domain in the Access-Control-Allow-Origin header (or or null). So, in order to use it, you need to set the correct headers. To improve web applications, developers asked browser vendors to allow XMLHttpRequest to make cross-domain requests.ĬORS gives web servers cross-domain access controls, which enable secure cross-domain data transfers. So, a web application using XMLHttpRequest could only make HTTP requests to its own domain. For example, XMLHttpRequest follows the same-origin policy. Just a quick reminder on Access-Control-Allow-Origin first:įor security reasons, browsers restrict cross-origin HTTP requests initiated from within scripts. Here’s a quicky copy/paste you can use when you need to set Access-Control-Allow-Origin headers in an Apache configuration, or in your.
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