.net - Why is my File result filename corrupted IE9? -


i'm trying generate , return files users. file names contain unicode characters: aäa.pdf. when trying download them in ie 9 filename gets corrupted , download appears this:

         ie9 filename issue

in chrome works expected. return statement:

return file(filestream: stream,              contenttype: system.net.mime.mediatypenames.application.octet,              filedownloadname: mymodel.name + "." + pub.outputfiletype);

how can fix issue ie 9 has?

it seems no doable ie9, state namesv in comments. solved abusing browser feature: when requests /foo/fileÄÖ.pdf , file returned, "filename" in url used.

so, created new route, targeted dynamic download , did in action:

if (request.browser.browser == "ie" && request.browser.majorversion == 9) {     // filename comes route used, host/print/file.pdf     response.clear();     response.addheader("content-disposition", "attachment");     response.contenttype = system.net.mime.mediatypenames.application.octet;     response.charset = "utf-8";     response.headerencoding = unicodeencoding.utf8;     response.contentencoding = unicodeencoding.utf8;     byte[] buffer = new byte[4096];     int count = 0;      while ((count = stream.read(buffer, 0, buffer.length)) > 0)     {         response.outputstream.write(buffer, 0, count);         response.flush();     }     response.end();     return null; } else {     return file(         filestream: stream,         contenttype: system.net.mime.mediatypenames.application.octet,         filedownloadname: compilation.name + "." + pub.outputfiletype); }

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