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Editorial Team
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Asked: 2026-05-11T22:14:28+00:00

Use case: user clicks the link on a webpage – boom! load of files

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Use case: user clicks the link on a webpage – boom! load of files sitting in his folder.
I tried to pack files using multipart/mixed message, but it seems to work only for Firefox

This is how my response looks like:

HTTP/1.0 200 OK
Connection: close
Date: Wed, 24 Jun 2009 23:41:40 GMT
Content-Type: multipart/mixed;boundary=AMZ90RFX875LKMFasdf09DDFF3
Client-Date: Wed, 24 Jun 2009 23:41:40 GMT
Client-Peer: 127.0.0.1:3000
Client-Response-Num: 1
MIME-Version: 1.0
Status: 200

--AMZ90RFX875LKMFasdf09DDFF3 
Content-type: image/jpeg 
Content-transfer-encoding: binary 
Content-disposition: attachment; filename="001.jpg" 

<< here goes binary data >>--AMZ90RFX875LKMFasdf09DDFF3 
Content-type: image/jpeg 
Content-transfer-encoding: binary 
Content-disposition: attachment; filename="002.jpg" 

<< here goes binary data >>--AMZ90RFX875LKMFasdf09DDFF3 
--AMZ90RFX875LKMFasdf09DDFF3--

Thank you

P.S. No, zipping files is not an option

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1 Answer

  1. Editorial Team

    Zipping is the only option that will have consistent result on all browsers. If it’s not an option because you don’t know zips can be generated dynamically, well, they can. If it’s not an option because you have a grudge against zip files, well..

    MIME/multipart is for email messages and/or POST transmission to the HTTP server. It was never intended to be received and parsed on the client side of a HTTP transaction. Some browsers do implement it, some others don’t.

    As another alternative, you could have a JavaScript script opening windows downloading the individual files. Or a Java Applet (requires Java Runtimes on the machines, if it’s an enterprise application, that shouldn’t be a problem [as the NetAdmin can deploy it on the workstations]) that would download the files in a directory of the user’s choice.

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