Address Darwin Core export review comments

frontend/src/components/Occurrence/OccurrenceDwcExportMenuItem.tsx

@@ -39,6 +39,7 @@ export const OccurrenceDwcExportMenuItem = ({ handleClose }: { handleClose: () =
         progressUrl: `${BACKEND_URL}/occurrence/export/dwc-archive/progress/${exportId}`,
         filename,
         fetchOptions: filteredFetchOptions,
+        progressFetchOptions: fetchOptions,
         notify,
         setNotificationMessage,
         startMessage: 'Generating DwC-A occurrence ZIP export...',

frontend/src/util/exportProgress.ts

@@ -9,6 +9,7 @@ type DownloadExportParams = {
   url: string
   filename: string
   fetchOptions?: RequestInit
+  progressFetchOptions?: RequestInit
   notify: Notify
   setNotificationMessage: (message: string) => void
   startMessage: string
@@ -30,6 +31,7 @@ export const downloadExportFileWithProgress = async ({
   url,
   filename,
   fetchOptions = {},
+  progressFetchOptions,
   notify,
   setNotificationMessage,
   startMessage,
@@ -53,7 +55,7 @@ export const downloadExportFileWithProgress = async ({
     if (!progressUrl) return false
 
     try {
-      const response = await fetch(progressUrl, fetchOptions)
+      const response = await fetch(progressUrl, progressFetchOptions ?? fetchOptions)
       if (!response.ok) return false
 
       const progress = (await response.json()) as ExportProgress