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apacheでHTTP206を抑制する方法

発生した障害

SprintBootにて、apacheプロキシを経由し、以下で公開したpdfファイルがIE11で正常に開けない。
→apacheでHTTP Status 206(Partial Content)で返戻している場合は、「カラースペースが無効です。」エラーが発生する。
→apacheでHTTP Status 200で返戻している場合は、同一ファイルでも正常に開くことができる。

WebConfig.java
@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
    @Bean
    public ResourceUrlEncodingFilter resourceUrlEncodingFilter() {
        return new ResourceUrlEncodingFilter();
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/static/**")
                .addResourceLocations("classpath:/static/");
    }
}

HTTP Status 206(Partial Content)が返戻される条件

RFC7233よりRange(If-Range)要請があった場合、206が応答されるよう

設定内容(httpd.conf)

以下を追加 ※本番適応時は、必要に応じFileディレクティブ等で適応範囲を絞ること

  • 最低限の設定
httpd.conf
RequestHeader unset Range
  • Example
httpd.conf
<Files *.pdf>
    Header set Accept-Ranges none #クライアントへRangeアクセスは受け付けないよという応答
    RequestHeader unset Range #Rangeアクセスを強制的に解除
</Files>

## 検証

  • 検証に利用したファイル
index.html
[ec2-user@ip-172-31-1-128 ~]$ cat /var/www/html/index.html
01234567890123456789
  • 設定なし
[ec2-user@ip-172-31-1-128 ~]$ telnet localhost 80
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
HEAD / HTTP/1.1
Host: localhost
Range: bytes=0-10

HTTP/1.1 206 Partial Content
Date: Tue, 28 Feb 2017 01:26:57 GMT
Server: Apache/2.2.31 (Amazon)
Last-Modified: Tue, 28 Feb 2017 00:41:57 GMT
ETag: "606b7-15-5498c769f64c3"
Accept-Ranges: bytes
Content-Length: 11
Content-Range: bytes 0-10/21
Connection: close
Content-Type: text/html; charset=UTF-8

Connection closed by foreign host.
  • 設定あり
[ec2-user@ip-172-31-1-128 ~]$ telnet localhost 80
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
HEAD / HTTP/1.1
Host: localhost
Range: bytes=0-10

HTTP/1.1 200 OK
Date: Tue, 28 Feb 2017 01:27:28 GMT
Server: Apache/2.2.31 (Amazon)
Last-Modified: Tue, 28 Feb 2017 00:41:57 GMT
ETag: "606b7-15-5498c769f64c3"
Accept-Ranges: none
Content-Length: 21
Connection: close
Content-Type: text/html; charset=UTF-8
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