Flowdock
method

fetch

Importance_1
v5.1.7 - Show latest stable - 0 notes - Class: ActionDispatch::Http::Headers
fetch(key, default = DEFAULT) public

Returns the value for the given key mapped to @env.

If the key is not found and an optional code block is not provided, raises a KeyError exception.

If the code block is provided, then it will be run and its result returned.

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