diff --git a/src/NetscriptFunctions.ts b/src/NetscriptFunctions.ts
index 8f84c0383..e48498c17 100644
--- a/src/NetscriptFunctions.ts
+++ b/src/NetscriptFunctions.ts
@@ -1661,15 +1661,15 @@ export function NetscriptFunctions(workerScript: WorkerScript): NS {
       (_hostname: unknown = workerScript.hostname): IServerDef => {
         const hostname = ctx.helper.string("hostname", _hostname);
         const server = safeGetServer(hostname, ctx);
-        const copy = Object.assign({}, server) as any;
+        const copy = Object.assign({}, server) as Server;
         // These fields should be hidden.
-        copy.contracts = undefined;
-        copy.messages = undefined;
-        copy.runningScripts = undefined;
-        copy.scripts = undefined;
-        copy.textFiles = undefined;
-        copy.programs = undefined;
-        copy.serversOnNetwork = undefined;
+        copy.contracts = [];
+        copy.messages = [];
+        copy.runningScripts = [];
+        copy.scripts = [];
+        copy.textFiles = [];
+        copy.programs = [];
+        copy.serversOnNetwork = [];
         if (!copy.baseDifficulty) copy.baseDifficulty = 0;
         if (!copy.hackDifficulty) copy.hackDifficulty = 0;
         if (!copy.minDifficulty) copy.minDifficulty = 0;
diff --git a/src/SaveObject.tsx b/src/SaveObject.tsx
index 2bc8999c3..df9aa9231 100755
--- a/src/SaveObject.tsx
+++ b/src/SaveObject.tsx
@@ -402,7 +402,7 @@ function evaluateVersionCompatibility(ver: string | number): void {
       }
     }
     if (ver < 15) {
-      (Settings as any).EditorTheme = { ...defaultMonacoTheme };
+      Settings.EditorTheme = { ...defaultMonacoTheme };
     }
     //Fix contract names
     if (ver < 16) {
@@ -605,23 +605,17 @@ function createBetaUpdateText(): void {
 
 function download(filename: string, content: string): void {
   const file = new Blob([content], { type: "text/plain" });
-  const navigator = window.navigator as any;
-  if (navigator.msSaveOrOpenBlob) {
-    // IE10+
-    navigator.msSaveOrOpenBlob(file, filename);
-  } else {
-    // Others
-    const a = document.createElement("a"),
-      url = URL.createObjectURL(file);
-    a.href = url;
-    a.download = filename;
-    document.body.appendChild(a);
-    a.click();
-    setTimeout(function () {
-      document.body.removeChild(a);
-      window.URL.revokeObjectURL(url);
-    }, 0);
-  }
+
+  const a = document.createElement("a"),
+    url = URL.createObjectURL(file);
+  a.href = url;
+  a.download = filename;
+  document.body.appendChild(a);
+  a.click();
+  setTimeout(function () {
+    document.body.removeChild(a);
+    window.URL.revokeObjectURL(url);
+  }, 0);
 }
 
 Reviver.constructors.BitburnerSaveObject = BitburnerSaveObject;
diff --git a/src/Script/Script.ts b/src/Script/Script.ts
index be46c3e8f..e4ea95c3d 100644
--- a/src/Script/Script.ts
+++ b/src/Script/Script.ts
@@ -67,23 +67,16 @@ export class Script {
   download(): void {
     const filename = this.filename;
     const file = new Blob([this.code], { type: "text/plain" });
-    const navigator = window.navigator as any;
-    if (navigator.msSaveOrOpenBlob) {
-      // IE10+
-      navigator.msSaveOrOpenBlob(file, filename);
-    } else {
-      // Others
-      const a = document.createElement("a"),
-        url = URL.createObjectURL(file);
-      a.href = url;
-      a.download = filename;
-      document.body.appendChild(a);
-      a.click();
-      setTimeout(function () {
-        document.body.removeChild(a);
-        window.URL.revokeObjectURL(url);
-      }, 0);
-    }
+    const a = document.createElement("a"),
+      url = URL.createObjectURL(file);
+    a.href = url;
+    a.download = filename;
+    document.body.appendChild(a);
+    a.click();
+    setTimeout(function () {
+      document.body.removeChild(a);
+      window.URL.revokeObjectURL(url);
+    }, 0);
   }
 
   /**
diff --git a/src/TextFile.ts b/src/TextFile.ts
index 64594a158..948b4f1d1 100644
--- a/src/TextFile.ts
+++ b/src/TextFile.ts
@@ -47,26 +47,17 @@ export class TextFile {
    * Serves the file to the user as a downloadable resource through the browser.
    */
   download(): void {
-    const filename: string = this.fn;
     const file: Blob = new Blob([this.text], { type: "text/plain" });
-    /* tslint:disable-next-line:strict-boolean-expressions */
-    const navigator = window.navigator as any;
-    if (navigator.msSaveOrOpenBlob) {
-      // IE10+
-      navigator.msSaveOrOpenBlob(file, filename);
-    } else {
-      // Others
-      const a: HTMLAnchorElement = document.createElement("a");
-      const url: string = URL.createObjectURL(file);
-      a.href = url;
-      a.download = this.fn;
-      document.body.appendChild(a);
-      a.click();
-      setTimeout(() => {
-        document.body.removeChild(a);
-        window.URL.revokeObjectURL(url);
-      }, 0);
-    }
+    const a: HTMLAnchorElement = document.createElement("a");
+    const url: string = URL.createObjectURL(file);
+    a.href = url;
+    a.download = this.fn;
+    document.body.appendChild(a);
+    a.click();
+    setTimeout(() => {
+      document.body.removeChild(a);
+      window.URL.revokeObjectURL(url);
+    }, 0);
   }
 
   /**
diff --git a/src/Themes/ui/StyleEditorModal.tsx b/src/Themes/ui/StyleEditorModal.tsx
index b5b7bec4c..374cd3ff1 100644
--- a/src/Themes/ui/StyleEditorModal.tsx
+++ b/src/Themes/ui/StyleEditorModal.tsx
@@ -140,13 +140,13 @@ export function StyleEditorModal(props: IProps): React.ReactElement {
         <FontFamilyField
           value={customStyle.fontFamily}
           refreshId={refreshId}
-          onChange={(value, error) => update({ ...customStyle, fontFamily: value as any }, error)}
+          onChange={(value, error) => update({ ...customStyle, fontFamily: value ?? "" }, error)}
         />
         <br />
         <LineHeightField
           value={customStyle.lineHeight}
           refreshId={refreshId}
-          onChange={(value, error) => update({ ...customStyle, lineHeight: value as any }, error)}
+          onChange={(value, error) => update({ ...customStyle, lineHeight: Number(value) ?? 0 }, error)}
         />
         <br />
         <ButtonGroup sx={{ my: 1 }}>