Fix fetch requests (#708)

* Revert audio fetching functionality to use XMLHttpRequest

* Replace requestJson

* Replace requestJson

* Replace requestJson

* Replace requestJson and requestText

* Fix tests

* Include support for vulgar word searches

* Remove request.js

1 files changed, 16 insertions, 2 deletions

diff --git a/ext/bg/js/dictionary-importer.js b/ext/bg/js/dictionary-importer.js
index 69d5c386..4374ff40 100644
--- a/ext/bg/js/dictionary-importer.js
+++ b/ext/bg/js/dictionary-importer.js
@@ -19,7 +19,6 @@
  * JSZip
  * JsonSchema
  * mediaUtility
- * requestJson
  */
 
 class DictionaryImporter {
@@ -235,7 +234,7 @@ class DictionaryImporter {
             return schemaPromise;
         }
 
-        schemaPromise = requestJson(chrome.runtime.getURL(fileName), 'GET');
+        schemaPromise = this._fetchJsonAsset(fileName);
         this._schemas.set(fileName, schemaPromise);
         return schemaPromise;
     }
@@ -365,4 +364,19 @@ class DictionaryImporter {
 
         return newData;
     }
+
+    async _fetchJsonAsset(url) {
+        const response = await fetch(chrome.runtime.getURL(url), {
+            method: 'GET',
+            mode: 'no-cors',
+            cache: 'default',
+            credentials: 'omit',
+            redirect: 'follow',
+            referrerPolicy: 'no-referrer'
+        });
+        if (!response.ok) {
+            throw new Error(`Failed to fetch ${url}: ${response.status}`);
+        }
+        return await response.json();
+    }
 }