cancel download correctly

2 files changed, 6 insertions, 2 deletions

diff --git a/client-web/source/sw/download_stream.ts b/client-web/source/sw/download_stream.ts
index 0ba6289..52d9fad 100644
--- a/client-web/source/sw/download_stream.ts
+++ b/client-web/source/sw/download_stream.ts
@@ -4,7 +4,7 @@ import { SW } from "./init.ts"
 function FallbackStreamDownload(size: number, filename?: string, progress?: (position: number) => void) {
     log({ scope: "*", warn: true }, "downloading to memory because serviceworker is not available")
     let position = 0
-    const buffer = new Uint8Array(size)
+    let buffer = new Uint8Array(size)
     return {
         close() {
             const a = document.createElement("a")
@@ -12,6 +12,7 @@ function FallbackStreamDownload(size: number, filename?: string, progress?: (pos
             a.download = filename ?? "file"
             a.click()
         },
+        abort() { buffer = new Uint8Array(); /* have fun gc */ },
         write(chunk: Blob) {
             const reader = new FileReader();
             reader.onload = function (event) {
@@ -57,6 +58,9 @@ export function StreamDownload({ size, filename, cancel, progress }: {
         close() {
             port1.postMessage("end")
         },
+        abort() {
+            port1.postMessage("abort")
+        },
         write(chunk: Blob) {
             const reader = new FileReader();
             reader.onload = function (event) {
diff --git a/client-web/source/sw/worker.ts b/client-web/source/sw/worker.ts
index 327aba0..94db220 100644
--- a/client-web/source/sw/worker.ts
+++ b/client-web/source/sw/worker.ts
@@ -39,7 +39,7 @@ function port_to_readable(port: MessagePort): ReadableStream {
         start(controller) {
             console.log("ReadableStream started");
             port.onmessage = event => {
-                if (event.data === "end") { controller.close() }
+                if (event.data === "end") controller.close()
                 else if (event.data === "abort") controller.error("aborted")
                 else controller.enqueue(event.data)
             }