Fix crashes below L

app/src/main/java/eu/kanade/tachiyomi/network/AndroidCookieJar.kt

@@ -14,6 +14,13 @@ class AndroidCookieJar(context: Context) : CookieJar {
 
     private val syncManager by lazy { CookieSyncManager.createInstance(context) }
 
+    init {
+        // Init sync manager when using anything below L
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            syncManager
+        }
+    }
+
     override fun saveFromResponse(url: HttpUrl, cookies: MutableList<Cookie>) {
         val urlString = url.toString()
 

app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt

@@ -101,11 +101,12 @@ class CloudflareInterceptor(private val context: Context) : Interceptor {
                 }
 
                 override fun onPageFinished(view: WebView, url: String) {
-                    if (url == origRequestUrl) {
+                    // Http error codes are only received since M
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M &&
+                        url == origRequestUrl && !challengeFound
+                    ) {
                         // The first request didn't return the challenge, abort.
-                        if (!challengeFound) {
-                            latch.countDown()
-                        }
+                        latch.countDown()
                     }
                 }
 
@@ -125,11 +126,6 @@ class CloudflareInterceptor(private val context: Context) : Interceptor {
                             latch.countDown()
                         }
                     }
-                    // Any error on the main frame that isn't the Cloudflare check should unlock
-                    // OkHttp's thread.
-                    if (errorCode != 503 && isMainFrame) {
-                        latch.countDown()
-                    }
                 }
             }
             webView?.loadUrl(origRequestUrl, headers)