faet(docs): document the new CORS options

Author: eliandoran

docs/User Guide/!!!meta.json

@@ -9968,6 +9968,26 @@
                                     "format": "markdown",
                                     "dataFileName": "Trilium instance.md",
                                     "attachments": []
+                                },
+                                {
+                                    "isClone": false,
+                                    "noteId": "LWtBjFej3wX3",
+                                    "notePath": [
+                                        "pOsGYCXsbNQG",
+                                        "tC7s2alapj8V",
+                                        "Gzjqa934BdH4",
+                                        "LWtBjFej3wX3"
+                                    ],
+                                    "title": "Cross-Origin Resource Sharing (CORS)",
+                                    "notePosition": 20,
+                                    "prefix": null,
+                                    "isExpanded": false,
+                                    "type": "text",
+                                    "mime": "text/html",
+                                    "attributes": [],
+                                    "format": "markdown",
+                                    "dataFileName": "Cross-Origin Resource Sharing .md",
+                                    "attachments": []
                                 }
                             ]
                         },

docs/User Guide/User Guide/Advanced Usage/Configuration (config.ini or environment variables)/Cross-Origin Resource Sharing .md

@@ -0,0 +1,6 @@
+# Cross-Origin Resource Sharing (CORS)
+By default, Trilium cannot be accessed in web browsers by requests coming from other domains/origins than Trilium itself. 
+
+However, it is possible to manually configure [Cross-Origin Resource Sharing (CORS)](https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/CORS) since Trilium v0.93.0 using environment variables or `config.ini`, as follows:
+
+<figure class="table" style="width:100%;"><table class="ck-table-resized"><colgroup><col style="width:26.93%;"><col style="width:32.46%;"><col style="width:40.61%;"></colgroup><thead><tr><th>CORS Header</th><th>Corresponding option in <code>config.ini</code></th><th>Corresponding option in environment variables in the <code>Network</code> section</th></tr></thead><tbody><tr><td><code>Access-Control-Allow-Origin</code></td><td><code>TRILIUM_NETWORK_CORS_ALLOW_ORIGIN</code></td><td><code>corsAllowOrigin</code>&nbsp;</td></tr><tr><td><code>Access-Control-Allow-Methods</code></td><td><code>TRILIUM_NETWORK_CORS_ALLOW_METHODS</code></td><td><code>corsAllowMethods</code>&nbsp;</td></tr><tr><td><code>Access-Control-Allow-Headers</code></td><td><code>TRILIUM_NETWORK_CORS_ALLOW_HEADERS</code></td><td><code>corsAllowHeaders</code></td></tr></tbody></table></figure>