From cbd526d318fc6c62cbebb1d8c89a2a7a6f7f76d8 Mon Sep 17 00:00:00 2001
From: jcesarmobile <jcesarmobile@gmail.com>
Date: Wed, 30 Oct 2019 16:30:13 +0100
Subject: [PATCH] fix(ios): mitigate media memory usage (#459)

---
 src/ios/IONAssetHandler.m | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/ios/IONAssetHandler.m b/src/ios/IONAssetHandler.m
index 52135fa3..5ed1f0f8 100644
--- a/src/ios/IONAssetHandler.m
+++ b/src/ios/IONAssetHandler.m
@@ -36,8 +36,14 @@ - (void)webView:(WKWebView *)webView startURLSchemeTask:(id <WKURLSchemeTask>)ur
             }
         }
     }
-
-    NSData * data = [[NSData alloc] initWithContentsOfFile:startPath];
+    NSError * fileError = nil;
+    NSData * data = nil;
+    if ([self isMediaExtension:url.pathExtension]) {
+        data = [NSData dataWithContentsOfFile:startPath options:NSDataReadingMappedIfSafe error:&fileError];
+    }
+    if (!data || fileError) {
+        data =  [[NSData alloc] initWithContentsOfFile:startPath];
+    }
     NSInteger statusCode = 200;
     if (!data) {
         statusCode = 404;