Hello everyone and congratulations for the useful plugin!
I have an issue with the download of a pdf file.
I did several tests, I finally summed up in test3.html file contained in the archive that I have submitted, in attachment (I know it is not very good.. I packed the entire test environment, in a file archive, so after this, I changed its name to get it accepted by the site. So you must save it locally and then rename it as zip file! in the extracted dir, you will find all I have used in the test.).
PS. in the fileDownload.js file, I changed the return error function, so to obtain more useful information about the error.. but so far still have not managed to solve the problem.
My enviroment is Windows XP (SP3), IE8, FF22, Chrome rel 35.0.1916.114 m.
I tried also the jQuery 1.10.2 (in the dir).
Thank you for your valuable help. If I find a solution before your reply, I'll let you know. Again, thank you.
R.A.
Save and rename to .zip.
SHA1: 1e081701ffb2a8d07eaf9c387514277ec1a5fd4f
MD5: f6fd3fb728c49af918c12ee6a21bf631
application/octet-stream |
MIME Type: application/octet-stream |
MIME Content Type:Application |
Associated File Extensions:pkg files, lha files, lzh files, bin files, lrf files, mar files, class files, dylib files, elc files, so files, dmg files, dms files, bpk files, exe files, pgp files, ani files, dll files, deploy files, dist files, distz files, dump files |
Any general, binary format that the server doesn't recognize usually uses this MIME type. Upon receiving this type, most browsers prompt the user and give the user an option to save to disk. RFC1521, Borenstein |
Compatible with Windows 10, 8, 7, Vista, XP and 2000
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What Are MIME Types?
A Multi-Purpose Internet Mail Extension (eg. “application/octet-stream”), also known as a MIME, is type of Internet standard originally developed to allow the exchange of different types of data files through e-mail messages. MIME types like application/octet-stream are classified into specific data categories such as Video, Audio, Image, and many more. This categorization provides instructions to your computer or mobile device about how these files should be opened / viewed.
Why Do I Need MIME Types Like application/octet-stream?
Categorizing MIME types like application/octet-stream into a data type such as “Application” allows your e-mail client or Internet browser to display the content as intended. For example, when you attach a digital camera photo file to an e-mail, an Image MIME type will be associated with that file to allow your recipient to view the photograph.
Here's how it works: Web servers (computers that host websites and e-mail) insert a set of MIME instructions into the beginning of a data transmission, such as an e-mail message or webpage, in the following format:
Content-Type: application/octet-stream
[Format Explanation: The MIME type, which in this example is “Application”, is separated by a forward slash (“/”) and followed by a subtype.]
This set of instructions tells your client application, such as an e-mail program (eg. Microsoft Outlook, Apple Mail) or web browser (eg. Google Chrome, Mozilla Firefox), which “player application” should be used to properly display the application/octet-stream content.
Many modern web browsers include built-in components to display common data types such as image players (eg. GIF, JPEG), Adobe Flash Player, Javascript, and many more. Other less-common types of players must be downloaded separately in order to properly display the MIME content.
What Are The Most Common Problems Associated With application/octet-stream?
Sometimes you’ll find that your web browser or e-mail client is unable to properly display your application/octet-stream content. This could be due to one of two reasons:
1. You are missing the proper Application “player software” to display the application/octet-stream content.
2. Your Windows Registry contains an incorrect file extension (eg. XLS, PDF) association with the application/octet-stream MIME type.
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How To Fix application/octet-stream Issues
Do I have the application/octet-stream “player application” installed?
The first step in troubleshooting issues with opening application/octet-stream content is to first make sure that you have the correct “player application” installed for this MIME type. Because there can be several (or even hundreds) of related software applications to application/octet-stream, it is very difficult for us to compile a comprehensive list.
Therefore, a key strategy in determining the correct application is to look for clues on what software programs might be related to application/octet-stream. Look at the naming of the subtype for clues about a related program (eg. Word, Excel) or software developer name (eg. Microsoft).
Furthermore, if you’ve been sent MIME type application/octet-stream as an e-mail attachment, look for the file extension of the attached file. This file extension (eg. PKG, LHA, LZH, etc.) can provide you with a clue of what “player application” is associated with this Application MIME. Take a look at our file extension list below to see if there are any clues to finding the right “player application”.
Do I have broken application/octet-stream file associations?
The second step in troubleshooting application/octet-stream issues is making sure that you have correct file associations in the Windows Registry. Installing and uninstalling programs can lead to incorrect file associations with application/octet-stream. Take a look at your Windows Registry settings to ensure that the MIME type is correctly associated with the “player application” and file extension.
WARNING: DO NOT edit the Windows Registry unless you are an advanced computer user with experience editing the Registry. Making an error in editing the Registry can create irreversible damage to your PC.
If you are not comfortable editing the Windows Registry, we highly recommend using an automated registry cleaning program, or taking you computer to a qualified professional.
Background
By default, many web servers are configured to report a MIME type of text/plain
or application/octet-stream
for unknown content types. As new content types are invented or added to web servers, web administrators may fail to add the new MIME types to their web server's configuration. This is a major source of problems for users of Gecko-based browsers, which respect the MIME types as reported by web servers and web applications.
What are MIME types?
MIME types describe the media type of content either in email or served by web servers or web applications and are intended to help guide a web browser in how the content is to be processed and displayed. Examples of MIME types are:
text/html
for normal web pagestext/plain
for plain texttext/css
for Cascading Style Sheetstext/javascript
for scriptsapplication/octet-stream
meaning 'download this file'application/x-java-applet
for Java appletsapplication/pdf
for PDF documents
Technical Background
Registered values for MIME types are available in IANA | MIME Media Types. The HTTP specification defines a superset of MIME which is used to describe the media types used on the web.
Why are correct MIME types important?
If the web server or application reports an incorrect MIME type for content, a web browser has no way, according to the HTTP specification, of knowing that the author actually intended the content to be processed and displayed in a way different from that implied by the reported MIME type.
Some other web browsers, such as Microsoft® Internet Explorer, try to allow for misconfigured web servers and applications by guessing what the correct MIME type should be. This has sheltered many web administrators from their own errors, since Internet Explorer will continue to process content as expected even though the web server is misconfigured, e.g. displays an image which is reported to be plain text.
Serving content using the correct MIME type can also be important for security reasons; it's possible for malicious content to affect the user's computer by pretending to be a safe type of document when it is in fact not.
Note: Historically, Firefox has loaded CSS files even if they had the wrong MIME type, as long as the HTML document that requested them was being processed in quirks mode. For security reasons, Gecko 2.0 will no longer do this for stylesheets loaded from a different origin than the requesting document. If your stylesheet comes from a different origin than the document, you must serve it with the correct MIME type (text/css
).
Gecko 1.9.1.11 (Firefox 3.5.11) and Gecko 1.9.2.5 (Firefox 3.6.5) also implement this security fix, but to improve compatibility, there was a temporary heuristic that allows the load if the first line in the style sheet appears to be a well-formed CSS construct; the heuristic has been removed in Firefox 4, and you have to properly set the text/css
MIME types to have your CSS pages recognized.
Why browsers should not guess MIME types
Apart from violating the HTTP specification, it is a bad strategy for browsers to guess MIME types for the following reasons:
Loss of control
If the browser ignores the reported MIME type, web administrators and authors no longer have control over how their content is to be processed.
For example, a web site oriented for web developers might wish to send certain example HTML documents as either text/html
or text/plain
in order to have the documents either processed and displayed as HTML or as source code. If the browser guesses the MIME type, this option is no longer available to the author.
Security
Some content types, such as executable programs, are inherently unsafe. For this reason these MIME types are usually restricted in terms of what actions a web browser will take when given content of that type. An executable program should not be executed on the user's computer and at most should cause a dialog to appear asking the user if they wish to download the file.
MIME type guessing has led to security exploits in Internet Explorer which were based upon a malicious author incorrectly reporting a MIME type of a dangerous file as a safe type. This bypassed the normal download dialog resulting in Internet Explorer guessing that the content was an executable program and then running it on the user's computer.
How to determine the MIME type sent by a server
In Firefox, load the file and use Tools | Page Info. You can also use Rex Swain's HTTP Viewer or Live HTTP Headers to see the full headers and content of any file sent from a web server.
According to the standards, a meta
tag that gives the MIME type such as <meta http-equiv='Content-Type'>
should be ignored if there's a Content-Type
line in the header. Instead of looking for this line in the HTML source, use the above techniques to determine the MIME type sent by the server.
How to determine the correct MIME type for your content
Youtube Application Octet Stream
There are several steps which you can take to determine the correct MIME type value to be used for your content.
- If your content was created using a vendor's software application, read the vendor's documentation to see what MIME types should be reported for different media types.
- Look in the IANA | MIME Media Types registry which contains all registered MIME types.
- If the media type is displayed using a plug-in in Netscape Gecko, install the plug-in and then look in the Help->About Plug-ins Menu to see what MIME types are associated with the media type.
- Search for the file extension in FILExt or File extensions reference to see what MIME types are associated with that extension.
How to set up your server to send the correct MIME types
The fundamental idea is to configure your server to send the correct Content-Type
HTTP header for each document.
- If you're using the Apache web server, simply copy this sample .htaccess file to the directory that contains the files that you want to send with the correct MIME types. If you have an entire subdirectory of files, just place the file in the parent directory; you need not place it in each subdirectory.
- If you're using Microsoft IIS, see this article at Microsoft TechNet.
- If you're using a server-side script to generate content, you can generally add one line near the top of your script. You can serve content other than HTML from Perl, PHP, ASP, or Java — just change the MIME type accordingly.
- For Perl CGI, you should have the line
print 'Content-Type: text/htmlnn';
before any other output lines. If you're using the CGI module, you can use the lineprint $cgi->header('text/html');
instead, where$cgi
is your reference to the CGI instance. - For PHP, you should have the line
header('Content-Type: text/html');
before any other output lines. - For ASP, you should have the line
response.ContentType = 'text/html';
before any other output lines. - For a Java servlet, you should have the line
response.setContentType('text/html');
at the top of yourdoGet
ordoPost
method, whereresponse
is a reference to theHttpServletResponse
.
- For Perl CGI, you should have the line
Related Links
Application Octet Stream Wav
Original Document Information
Open Stream File
- Author: Bob Clary, date: 20 Feb 2003