Laravel Base64 image decoding not showing in browser

I copied verbatim some sample code which I now I can't find. Anyway here's part of my CustomerController.php

use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Storage;

`$photo = $customer['photo'];
// convert base64 and save to folder
$image_data = base64_decode(preg_replace('#^data:image/\w+;base64,#i', '', $photo));

//grab a new tmp file
$tmpFilePath=sys_get_temp_dir().'/'.uniqid(); 

//write the image to it
file_put_contents($tmpFilePath, $image_data); 

//move it. 

//give it a name
$mime_type = 'jpg';
$imageName = time().'.'.str_replace("image/","",$mime_type);

//or if using File facade
File::move($tmpFilePath, public_path("sq1/$imageName"));

Using postman to test, it returns success, creates the jpg but doesn't display the image.

https://wv-mr.overair.ca/sq1/1543215074.jpg

I used this encoder (I wanted to spare you from attaching the entire base64): https://www.browserling.com/tools/image-to-base64

If it helps what I found is that the actual image is 7,583 bytes, but the decoded image is only 7,483 bytes. Not sure why 100 bytes were lost during decoding.

via Chebli Mohamed