Automatically add file extension if custom file output is provided fr…

…om the browser extension (#18)

extension/code/extensionHandler.js

@@ -15,6 +15,7 @@ function updateClient() {
             ]);
             for (let [key, value] of avoidNullishValues) if (scriptOptions[key] === null) scriptOptions[key] = value;
             if (scriptOptions.advanced.maximum_downloads === null) scriptOptions.advanced.maximum_downloads = Infinity;
+            if (typeof scriptOptions.output_name_type === "string" && ((scriptOptions.export_format === "json" && scriptOptions.output_name_type.indexOf(".json")) === -1 || (scriptOptions.export_format === "txt" && scriptOptions.output_name_type.indexOf(".txt") !== -1))) scriptOptions.output_name_type = `${scriptOptions.output_name_type}.${scriptOptions.export_format}`;
             scriptOptions.node.isNode = true; // Mark this script as it is being used in Node via Puppeteer, so that a Promise will be made, resolved when it's time to download everything. While the download would start in any case, in this way we can also notify the extension UI that the conversion has ended.
             startDownload().then((arr) => {
                 downloadScript(arr.join("\n"), true);

script.js

@@ -168,7 +168,7 @@ function downloadScript(script, force) {
     }
     if (typeof scriptOptions.output_name_type === "string") name = scriptOptions.output_name_type; // If it's a string, apply it to the output name
     if (scriptOptions.adapt_text_output) name = sanitizeName(name); // If the user wants to use safe characters only, adapt the string name.
-    link.href = URL.createObjectURL(new File([blob], name, { type: "text/plain" }));
+    link.href = URL.createObjectURL(new File([blob], name, { type: scriptOptions.export_format === "json" ? "application/json" : "text/plain" }));
     link.download = name;
     link.click();
     URL.revokeObjectURL(link.href);