Only set lang on initial publish in all editors

This fixes #280 in all editors, continuing work from #435.

templates/bare.tmpl

@@ -105,15 +105,12 @@
 			$btnPublish.el.disabled = true;
 
 			var http = new XMLHttpRequest();
-			var lang = navigator.languages ? navigator.languages[0] : (navigator.language || navigator.userLanguage);
-			lang = lang.substring(0, 2);
 			var post = H.getTitleStrict(content);
 
 			var params = {
 				body: post.content,
 				title: post.title,
-				font: font,
-				lang: lang
+				font: font
 			};
 			{{ if .Post.Slug }}
 			var url = "/api/collections/{{.EditCollection.Alias}}/posts/{{.Post.Id}}";
@@ -124,6 +121,10 @@
 			}
 			params.token = token;
 			{{ else }}
+			var lang = navigator.languages ? navigator.languages[0] : (navigator.language || navigator.userLanguage);
+			lang = lang.substring(0, 2);
+			params.lang = lang;
+
 			var url = "/api/posts";
 			var postTarget = '{{if .Blogs}}{{$c := index .Blogs 0}}{{$c.Alias}}{{else}}anonymous{{end}}';
 			if (postTarget != 'anonymous') {

templates/wysiwyg.tmpl

@@ -168,15 +168,12 @@
 			var xpostTarg = H.get('crosspostTarget', '[]');
 
 			var http = new XMLHttpRequest();
-			var lang = navigator.languages ? navigator.languages[0] : (navigator.language || navigator.userLanguage);
-			lang = lang.substring(0, 2);
 			var post = H.getTitleStrict(content);
 
 			var params = {
 				body: post.content,
 				title: title,
-				font: font,
-				lang: lang
+				font: font
 			};
 			{{ if .Post.Slug }}
 			var url = "/api/collections/{{.EditCollection.Alias}}/posts/{{.Post.Id}}";
@@ -187,6 +184,10 @@
 			}
 			params.token = token;
 			{{ else }}
+			var lang = navigator.languages ? navigator.languages[0] : (navigator.language || navigator.userLanguage);
+			lang = lang.substring(0, 2);
+			params.lang = lang;
+
 			var url = "/api/posts";
 			var postTarget = H.get('postTarget', 'anonymous');
 			if (postTarget != 'anonymous') {