CODEWITHSUNDEEP
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user3155354
user3155354

Reputation: 61

How to disable the range option in http request header?

While downloading a PDF via google chrome, i receive a 206 status response from the server. After going through the RFC, i found out that the client is making a conditional GET request appending a range header. is there any way to disable the range header while making the request or using a different browser is a solution?

Upvotes: 5

Views: 15711

Answers (3)

TomB
TomB

Reputation: 765

This a solution for IIS. Verified for IIS 10.0

There is no built-in mechanism to achieve that but you can use "URL Rewrite" (https://www.iis.net/downloads/microsoft/url-rewrite) for that.

  1. Create a new Outbound Rule
  2. Apply a Name like Disable accept-ranges header
  3. Match region:
    Set Mathing scope to Server Variable
  4. Match region:
    Set Variable name to RESPONSE_ACCEPT_RANGES.
    I did not find a documentation on available variables. You can add/modify any http header by using the format RESPONSE_MyHttpHeader
  5. Match region:
    Set Variable value to Matches the Pattern
    Set Set Using to Regular Expressions
    Set Pattern to ".*" (without the quotes)
    Set (check) Ignore case
  6. Action:
    Set Action Type to Rewrite
    Set the Value to none
    Set (check) Replace existing server variable value

You can test your changes using curl:

curl -I https://<AddServerUrlHere>

Upvotes: 0

Oliver Emberton
Oliver Emberton

Reputation: 951

Just make sure you have mod_headers enabled, then add this to your Apache config:

<Files *.pdf>
    Header set Accept-Ranges none 
</Files>

The issue you're experiencing is a documented bug in Chrome: when a user tries to save a PDF file before the whole file has had a chance to download, the resulting file is corrupted. This fix stops Chrome from making partial requests for the file.

Upvotes: 1

SaintJob 2.0
SaintJob 2.0

Reputation: 574

What server are you using?

This is the apache documentation for mod_headers. You can set the Accept-Ranges header to none

http://httpd.apache.org/docs/2.2/mod/mod_headers.html

Try setting "Accept-Ranges none" in the httpd.conf file.

The mod_headers module must be loaded in the server too.

Also, when the request of a pdf or often streamed file it's done through chrome or an adobe plugin or so (other plugins), they will always attempt to do the GET request with Range:0- and try partial requests of the file to show content to the user (first pages of the pdf if the pdf is big) and manage the download so the server will respond with 206 status.

Upvotes: 1

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