Support CSRF in HTMX non-form posts.

templates/components/core.gohtml

@@ -19,4 +19,14 @@
 {{define "js"}}
     <script src="https://unpkg.com/htmx.org@1.6.1"></script>
     <script defer src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
+{{end}}
+
+{{define "footer"}}
+    {{- if .CSRF}}
+        <script>
+            document.body.addEventListener('htmx:configRequest', (event) => {
+                event.detail.parameters['csrf'] = '{{ .CSRF }}';
+            })
+        </script>
+    {{end}}
 {{end}}

templates/layouts/auth.gohtml

@@ -23,5 +23,7 @@
                 </div>
             </div>
         </section>
+
+        {{template "footer"}}
     </body>
 </html>

templates/layouts/main.gohtml

@@ -38,5 +38,7 @@
                 </div>
             </div>
         </section>
+
+        {{template "footer"}}
     </body>
 </html>