fix (embed): Filestash embedding issue

whenever embedding something with a locale setup, it would crash while
trying to download the translation. This was due to some
missunderstanding of how fetch work while in an iframe and all the
reports would get miss because of that same issue as it was sent not to
the origin server but the website embedding the frame

public/assets/helpers/log.js

@@ -1,4 +1,5 @@
 import { toHref } from "../lib/skeleton/router.js";
+import ajax from "../lib/ajax.js";
 
 export function report(msg, err, link, lineNo, columnNo) {
     if (window.navigator.onLine === false) return Promise.resolve();
@@ -10,5 +11,5 @@ export function report(msg, err, link, lineNo, columnNo) {
     url += "from.columnNo=" + columnNo;
     if (err instanceof Error) url += "error=" + encodeURIComponent(err.message) + "&";
 
-    return fetch(url, { method: "post" }).catch(() => {});
+    return ajax({ url, method: "post" }).toPromise().catch(() => {});
 }

public/assets/locales/index.js

@@ -1,4 +1,5 @@
-import rxjs, { ajax } from "../lib/rx.js";
+import rxjs from "../lib/rx.js";
+import ajax from "../lib/ajax.js";
 
 let LNG = {};
 
@@ -42,11 +43,10 @@ export async function init() {
     }
     return ajax({
         url: "assets/locales/" + selectedLanguage + ".json",
-        responseType: "json",
     }).pipe(rxjs.tap(({ responseHeaders, response }) => {
         const contentType = responseHeaders["content-type"].trim();
         if (contentType === "application/json") {
-            LNG = response;
+            LNG = JSON.parse(response);
             return;
         }
         throw new Error(`wrong content type '${contentType}'`);

public/assets/pages/viewerpage/application_table.js

@@ -19,7 +19,7 @@ class ITable {
     getBody() { throw new Error("NOT_IMPLEMENTED"); }
 }
 
-export default async function(render, { mime, getDownloadUrl = nop, getFilename = nop, hasMenubar = true, acl$ }) {
+export default async function(render, { mime, getDownloadUrl = nop, getFilename = nop, hasMenubar = true, acl$ = rxjs.EMPTY }) {
     const $page = createElement(`
         <div class="component_tableviewer">
             <component-menubar filename="${getFilename()}" class="${!hasMenubar && "hidden"}"></component-menubar>

server/routes.go

@@ -103,8 +103,8 @@ func Build(r *mux.Router, a App) {
 	}
 
 	// Other endpoints
-	middlewares = []Middleware{ApiHeaders, PluginInjector}
+	middlewares = []Middleware{ApiHeaders, PluginInjector, PublicCORS}
-	r.HandleFunc(WithBase("/report"), NewMiddlewareChain(ReportHandler, middlewares, a)).Methods("POST")
+	r.HandleFunc(WithBase("/report"), NewMiddlewareChain(ReportHandler, middlewares, a)).Methods("POST", "OPTIONS")
 	middlewares = []Middleware{IndexHeaders, SecureHeaders, PluginInjector}
 	r.HandleFunc(WithBase("/about"), NewMiddlewareChain(AboutHandler, middlewares, a)).Methods("GET")
 	r.HandleFunc(WithBase("/robots.txt"), NewMiddlewareChain(RobotsHandler, []Middleware{}, a))