Remove unused check for Stream length

Flow.Launcher.Core/Plugin/PluginManager.cs

@@ -195,11 +195,11 @@ public static async Task<List<Result>> QueryForPlugin(PluginPair pair, Query que
             catch (OperationCanceledException)
             {
                 // null will be fine since the results will only be added into queue if the token hasn't been cancelled
-                return results = null;
+                return null;
             }
             catch (Exception e)
             {
-                Log.Exception($"|PluginManager.QueryForPlugin|Exception for plugin <{pair.Metadata.Name}> when query <{query}>", e);
+               Log.Exception($"|PluginManager.QueryForPlugin|Exception for plugin <{pair.Metadata.Name}> when query <{query}>", e);
             }
 
             return results;

Plugins/Flow.Launcher.Plugin.WebSearch/Main.cs

@@ -123,12 +123,12 @@ private async Task<IEnumerable<Result>> SuggestionsAsync(string keyword, string
             var source = _settings.SelectedSuggestion;
             if (source != null)
             {
-                var suggestions = await source.Suggestions(keyword, token);
+                var suggestions = await source.Suggestions(keyword, token).ConfigureAwait(false);
 
                 if (token.IsCancellationRequested)
                     return null;
 
-                var resultsFromSuggestion = suggestions.Select(o => new Result
+                var resultsFromSuggestion = suggestions?.Select(o => new Result
                 {
                     Title = o,
                     SubTitle = subtitle,

Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Baidu.cs

@@ -32,7 +32,7 @@ public override async Task<List<string>> Suggestions(string query, CancellationT
             catch (HttpRequestException e)
             {
                 Log.Exception("|Baidu.Suggestions|Can't get suggestion from baidu", e);
-                return new List<string>();
+                return null;
             }
 
             if (string.IsNullOrEmpty(result)) return new List<string>();

Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Bing.cs

@@ -24,16 +24,13 @@ public override async Task<List<string>> Suggestions(string query, CancellationT
                 const string api = "https://api.bing.com/qsonhs.aspx?q=";
 
                 using var resultStream = await Http.GetStreamAsync(api + Uri.EscapeUriString(query), token).ConfigureAwait(false);
-
-                if (resultStream.Length == 0) 
-                    return new List<string>(); // this handles the cancellation
-
+
                 json = (await JsonDocument.ParseAsync(resultStream, cancellationToken: token)).RootElement.GetProperty("AS");
 
             }
             catch (TaskCanceledException)
             {
-                return null;
+                return new List<string>();
             }
             catch (HttpRequestException e)
             {

Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/Google.cs

@@ -24,15 +24,12 @@ public override async Task<List<string>> Suggestions(string query, CancellationT
 
                 using var resultStream = await Http.GetStreamAsync(api + Uri.EscapeUriString(query)).ConfigureAwait(false);
 
-                if (resultStream.Length == 0) 
-                    return new List<string>();
-
                 json = await JsonDocument.ParseAsync(resultStream);
 
             }
             catch (TaskCanceledException)
             {
-                return null;
+                return new List<string>();
             }
             catch (HttpRequestException e)
             {