C#, ASP.NET, PHP and everything else related to development for Windows, Linux, Android, OSX etc.
Sometimes you struggle with issues that seem to be small at first glance but still consume a lot of time to find out what the real problem is especially when the issue can only be reproduced when a specific browser or version is used. In my case I build a script to download a PDF file in PHP. It seemed to work in all browsers until a client uploaded a very specific PDF file that wouldn’t open in chrome’s buildin PDF viewer but worked in all other browsers and also offline. Ahhhrr is it a chrome bug, or did I do something wrong? Continue reading to find out what I did to solve it.
My PHP file responsible for downloading the pdf file looked like this:
protected function download ( $spec ) header ( 'Content-Type: ' . $spec [ 'mime_type' ] ) ; header ( 'Content-Transfer-Encoding: Binary' ) ;header ( 'Content-disposition: attachment; filename crayon-sy">. basename ( $spec [ 'source' ] ) . '"' ) ;
readfile ( $spec [ 'source' ] ) ;The problem is the readfile part. That doesn’t do a really good job for larger/some PDF files. I don’t know exactly what goes wrong, maybe when I have time I will try to figure that out but for now I will just present you a solution that worked for me:
