diff --git a/400_xowa/src/gplx/langs/jsons/Json_wtr.java b/400_xowa/src/gplx/langs/jsons/Json_wtr.java
index 80e458d98..6e82d860a 100644
--- a/400_xowa/src/gplx/langs/jsons/Json_wtr.java
+++ b/400_xowa/src/gplx/langs/jsons/Json_wtr.java
@@ -267,7 +267,8 @@ public class Json_wtr {
 						bfr.Add_byte(b);
 					break;
 				case Byte_ascii.Nl:			bfr.Add_byte_repeat(Byte_ascii.Backslash, 2).Add_byte(Byte_ascii.Ltr_n); break;	// "\n" -> "\\n"
-				case Byte_ascii.Cr:			break;// skip
+				case Byte_ascii.Cr:			bfr.Add_byte_repeat(Byte_ascii.Backslash, 2).Add_byte(Byte_ascii.Ltr_r); break;	// "\r" -> "\\r"; DATE:2017-03-02
+				case Byte_ascii.Tab:		bfr.Add_byte_repeat(Byte_ascii.Backslash, 2).Add_byte(Byte_ascii.Ltr_t); break;	// "\t" -> "\\t"; DATE:2017-03-02
 				default:					bfr.Add_byte(b); break;
 			}
 		}
diff --git a/400_xowa/src/gplx/langs/jsons/Json_wtr_tst.java b/400_xowa/src/gplx/langs/jsons/Json_wtr_tst.java
index db77ebde7..a5f630ff6 100644
--- a/400_xowa/src/gplx/langs/jsons/Json_wtr_tst.java
+++ b/400_xowa/src/gplx/langs/jsons/Json_wtr_tst.java
@@ -16,7 +16,7 @@ Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
 package gplx.langs.jsons; import gplx.*; import gplx.langs.*;
 import org.junit.*;
 public class Json_wtr_tst {
-	@Before public void init() {fxt.Clear();} private final Json_wtr_fxt fxt = new Json_wtr_fxt();
+	@Before public void init() {fxt.Clear();} private final    Json_wtr_fxt fxt = new Json_wtr_fxt();
 	@Test   public void Root() {
 		fxt.Wtr().Doc_nde_bgn().Doc_nde_end();
 		fxt.Test
@@ -36,6 +36,26 @@ public class Json_wtr_tst {
 		, "}"
 		);
 	}
+	@Test   public void Escaped() {
+		fxt.Wtr()
+			.Doc_nde_bgn()
+			.Kv_str("backslash", "\\")
+			.Kv_str("quote", "\"")
+			.Kv_str("apos", "'")
+			.Kv_str("nl", "\n")
+			.Kv_str("cr", "\r")
+			.Kv_str("tab", "\t")
+			.Doc_nde_end();
+		fxt.Test
+		( "{ 'backslash':'\\\\'"
+		, ", 'quote':'\\\"'"
+		, ", 'apos':'\''"
+		, ", 'nl':'\\\\n'"
+		, ", 'cr':'\\\\r'"
+		, ", 'tab':'\\\\t'"
+		, "}"
+		);
+	}
 	@Test   public void Nde() {
 		fxt.Wtr()
 			.Doc_nde_bgn()
@@ -100,7 +120,7 @@ public class Json_wtr_tst {
 	}
 }
 class Json_wtr_fxt {
-	private final Json_wtr wtr = new Json_wtr().Opt_quote_byte_(Byte_ascii.Apos);
+	private final    Json_wtr wtr = new Json_wtr().Opt_quote_byte_(Byte_ascii.Apos);
 	public void Clear() {wtr.Clear();}
 	public Json_wtr Wtr() {return wtr;}
 	public void Test(String... expd) {
diff --git a/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/cbks/Xosearch_fulltext_svc.java b/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/cbks/Xosearch_fulltext_svc.java
index 691cf0357..097021590 100644
--- a/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/cbks/Xosearch_fulltext_svc.java
+++ b/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/cbks/Xosearch_fulltext_svc.java
@@ -31,16 +31,21 @@ class Xosearch_fulltext_svc implements Gfo_invk {
 		this.app = app;
 		cbk_highlight = new Xosearch_finder_cbk__highlight(app, cbk_trg);
 	}
-	private void Search(Xosearch_search_args args) {
-		byte[][] wiki_domains = Bry_split_.Split(args.wikis, Byte_ascii.Pipe_bry);
-		for (byte[] wiki_domain : wiki_domains) {
-			Xow_wiki wiki = app.Wiki_mgri().Get_by_or_make_init_y(wiki_domain);
-			Search_wiki(wiki, args.query, args.case_match, args.auto_wildcard_bgn, args.auto_wildcard_end, args.max_pages_per_wiki, args.max_snips_per_page);
-		}
-	} 
 	public void Search(Json_nde args) {
 		gplx.core.threads.Thread_adp_.Start_by_val("search", Cancelable_.Never, this, Invk__search, Xosearch_search_args.New_by_json(args));
 	}
+	private void Search(Xosearch_search_args args) {
+		try {
+			byte[][] wiki_domains = Bry_split_.Split(args.wikis, Byte_ascii.Pipe_bry);
+			for (byte[] wiki_domain : wiki_domains) {
+				Xow_wiki wiki = app.Wiki_mgri().Get_by_or_make_init_y(wiki_domain);
+				Search_wiki(wiki, args.query, args.case_match, args.auto_wildcard_bgn, args.auto_wildcard_end, args.max_pages_per_wiki, args.max_snips_per_page);
+			}
+		} catch (Exception exc) {				
+			if (app.Tid_is_edit())
+				((Xoae_app)app).Gui_mgr().Kit().Ask_ok("", "", Err_.Message_gplx_full(exc));
+		}
+	} 
 	private void Search_wiki(Xow_wiki wiki, byte[] query, boolean case_match, boolean auto_wildcard_bgn, boolean auto_wildcard_end, int max_pages_per_wiki, int max_snips_per_page) {
 		Db_conn page_conn = wiki.Data__core_mgr().Tbl__page().Conn();
 		Db_rdr page_rdr = page_conn.Stmt_sql("SELECT * FROM page WHERE page_namespace IN (0) ORDER BY page_score DESC").Exec_select__rls_auto();
diff --git a/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/finders/Xosearch_finder_cbk__eval__tst.java b/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/finders/Xosearch_finder_cbk__eval__tst.java
index 0d07e6c65..82f5c0940 100644
--- a/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/finders/Xosearch_finder_cbk__eval__tst.java
+++ b/400_xowa/src/gplx/xowa/addons/wikis/searchs/fulltexts/finders/Xosearch_finder_cbk__eval__tst.java
@@ -84,6 +84,11 @@ public class Xosearch_finder_cbk__eval__tst {
 		// y: slash before, after
 		fxt.Test__eval_y("a/b/c", "b/a/c", "b/c/a");
 	}
+	@Test   public void Brack() {
+		fxt.Init__search("a");
+		// y
+		fxt.Test__eval_y("[[a]]");
+	}
 	// .
 	// ...
 	// -