fix: svg bug

Author: frankpagan

src/index.js

@@ -144,7 +144,9 @@ class CoCreateFileSystem {
                 }
 
                 let contentType = file['content-type'] || 'text/html';
-                if (contentType.startsWith('image/') || contentType.startsWith('audio/') || contentType.startsWith('video/')) {
+                if (contentType === 'image/svg+xml')
+                    contentType = contentType
+                else if (contentType.startsWith('image/') || contentType.startsWith('audio/') || contentType.startsWith('video/')) {
                     src = src.replace(/^data:image\/(png|jpeg|jpg);base64,/, '');
                     src = Buffer.from(src, 'base64');
                 } else if (contentType === 'text/html') {