1.8 IIS rewrite map: The rule cannot be converted into an equivalent IIS format because of unsupported flags: E

Error IIS MAP

RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

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Hi

You can probably just remove that rule. It’s there to fix an issue in the way Apache processes non-GET requests.

As you know we don’t test with or particularly support IIS but thanks for posting it so others who meet this will be able to find it.

Alex

The system works as remove the line.

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Thanks for the update