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--- litespeed_wiki:config:cors [2017/10/09 14:21]
Lisa Clarke [Method 2: Set from config]
+++ litespeed_wiki:config:cors [2025/06/03 18:31] (current)
Lisa Clarke Redirect to new Documentation Site
@@ Line 1: / Line 1: @@
-====== Enabling Cross-Origin Resource Sharing ======
+~~REDIRECT>https://docs.litespeedtech.com/lsws/security-headers/#enable-cors~~
-Cross-Origin Resource Sharing (CORS) is a specification that enables truly open access across domain boundaries. If you serve public content, please consider using CORS to open it up for universal JavaScript/browser access. CORS introduces a standard mechanism that can be used by all browsers for implementing cross-domain requests.
-===== How to Enable =====
-==== Method 1: Set from htaccess file====
-Navigate to **Web Admin > Configurations > Your Virtual Hosts > General > HT Access section**:
-  - Click the **Edit** button
-  - Enable ''Limit'', ''Auth'', ''FileInfo'', ''Indexes'', ''Options'' from **Allow Override**
-  - Click the **Save** button
-  - Do a graceful restart
-Set CORS header to the ''.htaccess'' file of your Virtual Hosts location
-  - Create ''.htaccess'' if it doesn't exist and make it writable, e.g. \\ <code>file='/usr/local/lsws/DEFAULT/html/.htaccess';
-( [ -e "$file" ] || touch "$file" ) && [ ! -w "$file" ] && echo cannot write to $file && exit 1</code>
-  - Add ''<nowiki>Header Set Access-Control-Allow-Origin "*"</nowiki> '' to ''.htaccess'' file \\ {{:litespeed_wiki:config:cors-9.png?|}}
-==== Method 2: Set from config====
-Navigate to **Web Admin > Configurations > Your Virtual Hosts > Context**:
-  - Click the **Add** button
-  - Choose ''Static'' type
-  - Set **URI** to ''/'' (You can change this if you want to)
-  - Set **Location** to ''$SERVER_ROOT/Example/html/'' (You can change this if you want to)
-  - Set **Accessible** to ''Yes''
-  - Set **Extra Headers** to ''Access-Control-Allow-Origin *''
-  - Click the **Save** button
-  - Do a graceful restart    \\ {{:litespeed_wiki:config:cors-1.png?|}}\\{{:litespeed_wiki:config:cors-2.png?|}}
-===== How to Verify =====
-====Before verification====
-Check that our response header includes ''Access-Control-Allow-Origin *''. \\ {{:litespeed_wiki:config:cors-6.png?600|}} \\
-==== Start verification====
-Testing CORS is [[https://stackoverflow.com/questions/12173990/how-can-you-debug-a-cors-request-with-curl | not easy]], here we are going to use [[http://www.test-cors.org | the Test-cors online tool]] to verify it with simple steps.\\
-The tool looks like this. We need to enter the **HTTP Method** and Target **Remote URL** \\ {{:litespeed_wiki:config:cors-3.png?600|}}\\
-  * **Send Request** with the default supported method, e.g. ''GET'': \\ {{:litespeed_wiki:config:cors-4.png?600|}} \\
-  * **Send Request** with an unsupported method, e.g. ''DELETE'': \\ {{:litespeed_wiki:config:cors-5.png?600|}} \\
-  * You can also copy the code from the testing tool to test on your own: \\ <code>
-var createCORSRequest = function(method, url) {
-  var xhr = new XMLHttpRequest();
-  if ("withCredentials" in xhr) {
-    // Most browsers.
-    xhr.open(method, url, true);
-  } else if (typeof XDomainRequest != "undefined") {
-    // IE8 & IE9
-    xhr = new XDomainRequest();
-    xhr.open(method, url);
-  } else {
-    // CORS not supported.
-    xhr = null;
-  }
-  return xhr;
-};
-var url = 'http://Your_Domain/xxx';
-var method = 'DELETE';
-var xhr = createCORSRequest(method, url);
-xhr.onload = function() {
-  // Success code goes here.
-};
-xhr.onerror = function() {
-  // Error code goes here.
-};
-xhr.send();
-</code>
-==== How to support more methods ====
-By default, CORS supports the following methods: ''PUSH'', ''GET'' and ''HEAD''. What if you want to support ''OPTIONS'' and ''DELETE'', as well? \\
-=== Method 1: Set from htaccess file===
-You can simply append ''Header always set Access-Control-Allow-Methods: <nowiki>"GET,POST,OPTIONS,DELETE"</nowiki>'' to the ''.htaccess'' file
-=== Method 2: Set from config===
-You can simply append to **Extra Headers**: ''Access-Control-Allow-Methods GET, POST, OPTIONS, DELETE''. \\ {{:litespeed_wiki:config:cors-7.png?|}} \\
-If you try verification again with the ''DELETE'' HTTP method, you should see the 200 response. \\ {{:litespeed_wiki:config:cors-8.png?|}} \\
-===== More Information =====
-  * More [[https://enable-cors.org/resources.html | CORS information]]
-  * More [[https://www.ipragmatech.com/enable-cors-using-htaccess/ | CORS headers in htaccess]]
-  * More [[https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers | HTTP method and request]]