From 7966135ac72934f1e52cf4eb195d2cb6242ab823 Mon Sep 17 00:00:00 2001
From: Peter Cai <peter@typeblog.net>
Date: Wed, 19 Feb 2020 16:21:39 +0800
Subject: [PATCH] FileDecrypter: do not create object url in render

---
 src/web/fileDecrypter.coffee | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/web/fileDecrypter.coffee b/src/web/fileDecrypter.coffee
index 5e584b6..3eb0e7e 100644
--- a/src/web/fileDecrypter.coffee
+++ b/src/web/fileDecrypter.coffee
@@ -36,6 +36,10 @@ class FileDecrypter extends React.Component
       mime: mime
       length: parseInt resp.headers.get 'content-length'
 
+  componentWillUnmount: ->
+    if @state.downloaded
+      URL.revokeObjectURL @state.downloaded
+
   downloadFile: =>
     @setState
       downloading: true
@@ -65,7 +69,8 @@ class FileDecrypter extends React.Component
       type: @state.mime
     @setState
       decrypting: false
-      downloaded: blob
+      blob: blob
+      downloaded: URL.createObjectURL blob
 
   render: ->
     <div className="content-pastebin">{
@@ -95,7 +100,7 @@ class FileDecrypter extends React.Component
               # on a hidden link, because on some browsers it doesn't work
               <a
                 className="button-blue"
-                href={URL.createObjectURL @state.downloaded}
+                href={@state.downloaded}
                 download={@state.name}
               >
                 Save File