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Java's setRequestProperty supported, with a caveat

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Just a morsel of technical documentation..

Opera's Java implementation will now support HTTPUrlConnection.setRequestProperty but for security reasons (to prevent so called "request smuggling attacks") it will not permit sending several headers. These headers include "Host", "Content-length" and "Transfer-Encoding".

This is the same security policy we apply to the XMLHttpRequest object and I believe the Flash plugin does the same thing for its ActionScript implementation.

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Comments

Scott 20. April 2006, 14:39

Since you don't permit the sending of host headers, is Opera totally against HTTP 1.1 when requests are sent in these contexts?

Hallvord R. M. Steen 30. April 2006, 14:00

No. To clarify: these headers are added as required but by Opera itself. A Java applet or XMLHttpRequest script may not modify these values.

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