Fix whitespace handling in proxy

fix #49 & #45

frontend/src/ksp-task-grabber.ts

@@ -161,6 +161,7 @@ function parseTaskStatuses(doc: HTMLDocument): TaskStatus[] {
         const pointsMatch = /((–|\.|\d)+) *\/ *(\d+)/.exec(pointsStr)
         if (!pointsMatch) throw new Error()
         let points = +pointsMatch[2]
+        // points was a dash, means 0
         if (isNaN(points)) {
             points = 0
         }

server/Ksp.WebServer/KspPageRewriter.cs

@@ -16,7 +16,7 @@ namespace Ksp.WebServer
             ModifyTree(document, context.Request.Path.Value.Trim('/'));
 
             var outputHtml = new StringWriter();
-            document.ToHtml(outputHtml, new PrettyMarkupFormatter() { Indentation = "\t", NewLine = "\n" });
+            document.ToHtml(outputHtml, new HtmlMarkupFormatter());
             return outputHtml.ToString();
         }