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CFFILE upload gotcha with IE and JPG

Posted in ColdFusion by rip747 on May 9, 2007

Short little reminder for myself. For some reason IE sets the content type of a JPG file to image.pjpeg when uploading a JPG file. So make sure to update your cffile upload to accept this file along with image/jpg and image/jpeg. This doesn’t happen in FireFox. The full accept string for JPGs should be: image/jpg,image/jpeg,image/pjpeg.

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6 Responses

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  1. Sam Farmer said, on May 9, 2007 at 7:50 pm

    Thanks for the tip — will implement into our applications.

  2. Doug Hughes said, on May 9, 2007 at 10:15 pm

    pjpeg == progressive jpeg

  3. Kevin said, on May 24, 2007 at 10:21 am

    Any ideas on how to get IE to pass a jpg to the program configured to display a jpg based on file extension instead of always showing them in the browser when I stream a file out using

    When I send it as an attachment, it will open in the correct program, but will ask the open or save question.
    I also notice that when I send it as an attachment, the open/save dialog says it is an unknown file type.

  4. Kevin said, on May 24, 2007 at 10:22 am

    Sorry, it stripped the tags I sent, the code was without the tags.

    cfheader name=”Content-Disposition” value = “inline;filename=thefile.jpg”
    cfcontent type=”image/jpg” variable=”imageBinary”

  5. rip747 said, on May 24, 2007 at 1:46 pm

    @Kevin
    Don’t really know, but try this:
    <cfheader name=”Content-Disposition” value=”attachment;filename=memberlist.xls”>
    <cfcontent type=”application/octet-stream” file=”#FullFileName#” deletefile=”true” reset=”true”>
    I use this so that the browser will prompt them for a program to use to open the file. Notice the application/octet-stream, which is generic.

  6. Kevin said, on May 25, 2007 at 10:27 am

    We use the attachment method when we are launching one file at a time and that works fine, but we have a page that allows them to select a bunch of images to download to image pro and it gets pretty annoying to get all the open/save dialogs. The problem isn’t just within coldfusion, if I do a simple window.open in javascript, it too goes to the browser instead of to the program based on the file extension. Yet, it works fine for .tif files.


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