client: Disable the sleeps on the wasm target for now.

matrix_sdk/src/client.rs

@@ -847,12 +847,13 @@ impl Client {
             let response = if let Ok(r) = response {
                 r
             } else {
+                #[cfg(not(target_arch = "wasm32"))]
+                {
                     sleep::new(Duration::from_secs(1)).await;
                     continue;
+                }
             };
 
-            callback(response).await;
-
             // TODO send out to-device messages here
 
             #[cfg(feature = "encryption")]
@@ -874,16 +875,21 @@ impl Client {
                 }
             }
 
+            callback(response).await;
+
             let now = Instant::now();
 
             // If the last sync happened less than a second ago, sleep for a
             // while to not hammer out requests if the server doesn't respect
             // the sync timeout.
+            #[cfg(not(target_arch = "wasm32"))]
+            {
                 if let Some(t) = last_sync_time {
                     if now - t <= Duration::from_secs(1) {
                         sleep::new(Duration::from_secs(1)).await;
                     }
                 }
+            }
 
             last_sync_time = Some(now);