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Posted to common-issues@hadoop.apache.org by "EvanLiu2000 (via GitHub)" <gi...@apache.org> on 2026/04/19 04:29:37 UTC

Re: [PR] HDFS-17040. Namenode web UI should set content type to application/octet-stream when uploading a file. [hadoop]

EvanLiu2000 commented on PR #5721:
URL: https://github.com/apache/hadoop/pull/5721#issuecomment-4275168486

    Core-sites.xml :
     <property>
       <name>hadoop.http.filter.initializers</name>
       <value>org.apache.hadoop.security.HttpCrossOriginFilterInitializer</value>
     </property>
   
     <property>
       <name>hadoop.http.cross-origin.enabled</name>
       <value>true</value>
     </property>
   
     <property>
       <name>hadoop.http.cross-origin.allowed-origins</name>
       <value>*</value>
     </property>
   
     <property>
       <name>hadoop.http.cross-origin.allowed-methods</name>
       <value>GET,POST,HEAD,PUT,OPTIONS,DELETE</value>
     </property>
   
   <property>
     <name>hadoop.http.cross-origin.allowed-headers</name>
     <value>Origin,Accept,Content-Type,content-type,X-Requested-With,Authorization</value>
   </property>
   
     <property>
       <name>hadoop.http.cross-origin.max-age</name>
       <value>1800</value>
     </property>
    
   My Folder Permissions：
   liuye@debian:~/hadoop/hadoop-3.5.0$ hadoop fs -ls -R /
   drwxr-xr-x   - dr.who supergroup          0 2026-04-19 12:21 /ad
   
   When I attempted to upload a file to the `/ad` directory via the NameNode WebUI, an issue occurred:
   
   Access to XMLHttpRequest at 'http://debian:9864/webhdfs/v1/ad/a.txt?op=CREATE&namenoderpcaddress=localhost:9000&createflag=&createparent=true&overwrite=false' from origin 'http://127.0.0.1:9870' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.
   
   May I ask how I should resolve this issue?


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