From f977d181a875e2f1a57f0b3b267fbb269ee5e932 Mon Sep 17 00:00:00 2001
From: David Brochero <65723952+D-Brox@users.noreply.github.com>
Date: Fri, 20 Feb 2026 22:09:34 -0300
Subject: [PATCH] fix: default body to empty string if not present for
 FlareSolverr `POST` requests (#1915)

* fix: convert `RequestBody` to `FormBody` in FlareSolverr `POST` requests

* linting

* ref: don't convert json to form

* remove unused import
---
 .../network/interceptor/CloudflareInterceptor.kt | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/server/src/main/kotlin/eu/kanade/tachiyomi/network/interceptor/CloudflareInterceptor.kt b/server/src/main/kotlin/eu/kanade/tachiyomi/network/interceptor/CloudflareInterceptor.kt
index ed26eba6..cae62706 100644
--- a/server/src/main/kotlin/eu/kanade/tachiyomi/network/interceptor/CloudflareInterceptor.kt
+++ b/server/src/main/kotlin/eu/kanade/tachiyomi/network/interceptor/CloudflareInterceptor.kt
@@ -211,10 +211,18 @@ object CFClearance {
                                             returnOnlyCookies = onlyCookies,
                                             maxTimeout = timeout.inWholeMilliseconds.toInt(),
                                             postData =
-                                                if (originalRequest.method == "POST" && originalRequest.body is FormBody) {
-                                                    Buffer()
-                                                        .also { (originalRequest.body as FormBody).writeTo(it) }
-                                                        .readUtf8()
+                                                if (originalRequest.method == "POST") {
+                                                    when (val body = originalRequest.body) {
+                                                        is FormBody -> {
+                                                            Buffer()
+                                                                .also { body.writeTo(it) }
+                                                                .readUtf8()
+                                                        }
+
+                                                        else -> {
+                                                            ""
+                                                        }
+                                                    }
                                                 } else {
                                                     null
                                                 },