Safer image preview

1 files changed, 13 insertions, 0 deletions

diff --git a/client/src/root-helpers/images.ts b/client/src/root-helpers/images.ts
new file mode 100644
index 000000000..fb229ce6d
--- /dev/null
+++ b/client/src/root-helpers/images.ts
@@ -0,0 +1,13 @@
+function imageToDataURL (input: File | Blob) {
+  return new Promise<string>(res => {
+    const reader = new FileReader()
+
+    reader.onerror = err => console.error('Cannot read input file.', err)
+    reader.onloadend = () => res(reader.result as string)
+    reader.readAsDataURL(input)
+  })
+}
+
+export {
+  imageToDataURL
+}