Fixed block precedence calculation.

src/blockchain/block.rs

@@ -98,6 +98,10 @@ impl Block {
             return true;
         }
 
+        if my_diff == it_diff && self.nonce != other.nonce {
+            return self.nonce < other.nonce;
+        }
+
         false
     }
 }

src/dns/client.rs

@@ -406,7 +406,7 @@ impl HttpsDnsClient {
         let agent = ureq::AgentBuilder::new()
             .user_agent(&client_name)
             .timeout(std::time::Duration::from_secs(5))
-            .max_idle_connections_per_host(8)
+            .max_idle_connections_per_host(2)
             .max_idle_connections(16)
             .resolver(move |addr: &str| {
                 let addr = match addr.find(':') {

src/web_ui.rs

@@ -442,7 +442,7 @@ fn action_create_domain(context: Arc<Mutex<Context>>, miner: Arc<Mutex<Miner>>,
     };
     match context.chain.can_mine_domain(context.chain.get_height(), &name, &pub_key) {
         MineResult::Fine => {
-            std::mem::drop(context);
+            drop(context);
             create_domain(c, miner, CLASS_DOMAIN, &name, data, DOMAIN_DIFFICULTY, &keystore, signing, encryption, renewal);
             let _ = web_view.eval("domainMiningStarted();");
             event_info(web_view, &format!("Mining of domain \\'{}\\' has started", &name));