diff --git a/internal/web/server.go b/internal/web/server.go
index 4869b6e..65abe0a 100644
--- a/internal/web/server.go
+++ b/internal/web/server.go
@@ -251,7 +251,7 @@ func NewServer(isDev bool, sessionsPath string) *Server {
 		g1.Use(csrfInit)
 		g1.GET("/", create, logged)
 		g1.POST("/", processCreate, logged)
-		g1.GET("/preview", preview, logged)
+		g1.POST("/preview", preview, logged)
 
 		g1.GET("/healthcheck", healthcheck)
 		g1.GET("/metrics", metrics)
diff --git a/public/editor.ts b/public/editor.ts
index f682418..7a002cc 100644
--- a/public/editor.ts
+++ b/public/editor.ts
@@ -71,11 +71,12 @@ document.addEventListener("DOMContentLoaded", () => {
                 cmeditor!.classList.remove("hidden-important");
                 return;
             } else {
-                fetch(`${baseUrl}/preview?` +  new URLSearchParams({
-                    content: editor.state.doc.toString()
-                }), {
-                    method: 'GET',
+                const formData = new FormData();
+                formData.append('content', editor.state.doc.toString());
+                fetch(`${baseUrl}/preview`, {
+                    method: 'POST',
                     credentials: 'same-origin',
+                    body: formData
                 }).then(r => r.text()).then(r => {
                     let divpreview = dom.querySelector("div.preview") as HTMLElement;
                     divpreview!.innerHTML = r;