Fix pre-aborted signal, pptx-worker tracing, and binary fetch cache

Author: waleedlatif1

apps/sim/hooks/queries/workspace-files.ts

@@ -103,7 +103,7 @@ export function useWorkspaceFileContent(
 
 async function fetchWorkspaceFileBinary(key: string, signal?: AbortSignal): Promise<ArrayBuffer> {
   const serveUrl = `/api/files/serve/${encodeURIComponent(key)}?context=workspace`
-  const response = await fetch(serveUrl, { signal })
+  const response = await fetch(serveUrl, { signal, cache: 'no-store' })
   if (!response.ok) throw new Error('Failed to fetch file content')
   return response.arrayBuffer()
 }

apps/sim/lib/execution/pptx-vm.ts

@@ -72,6 +72,11 @@ export async function generatePptxFromCode(
       else resolve(result as Buffer)
     }
 
+    if (signal?.aborted) {
+      reject(new Error('PPTX generation cancelled'))
+      return
+    }
+
     signal?.addEventListener('abort', () => done(new Error('PPTX generation cancelled')), {
       once: true,
     })

apps/sim/next.config.ts

@@ -93,9 +93,10 @@ const nextConfig: NextConfig = {
     '/*': [
       './node_modules/sharp/**/*',
       './node_modules/@img/**/*',
-      // pptxgenjs is required by the PPTX worker subprocess at runtime.
-      // It has no static import that Next.js can trace, so we include it explicitly.
+      // pptxgenjs and the PPTX worker are required at runtime by the subprocess.
+      // Neither has a static import that Next.js can trace, so we include them explicitly.
       './node_modules/pptxgenjs/**/*',
+      './lib/execution/pptx-worker.cjs',
     ],
   },
   experimental: {