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Refused to set unsafe header "Connection"

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9 Posts   12995 Views


Community Member, 1 Post

12 July 2013 at 3:11am

It's an Error in prototype.js
Apparently, the error appeared because XMLHttpRequest isn’t allowed to set the Content-length header. It is set automatically by modern browsers. Mozilla Firefox now behaves the same way, just really old ones didn't. I solved the error by applying the following patch to the file sapphire/thirdparty/prototype/prototype.js

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