Return Assertion ID

[andreas]

Adding logic to return assertion id during SAML binding.

Resolves Clever#274

(this is a port of Clever#273)

[darioackermann]

Thanks for opening the PR!

Could you

• adjust the README.md accordingly (as in your original PR against clever/saml2-js)
• return directly from get_assertion_id

get_assertion_id = (dom) ->
  assertion = dom.getElementsByTagNameNS(XMLNS.SAML, 'Assertion')
  throw new Error("Expected 1 Assertion; found #{assertion.length}") unless assertion.length is 1
  get_attribute_value assertion[0], 'ID'

[andreas]

Thanks for the feedback – I've updated accordingly now.

[darioackermann]

LGTM, thank you! 👍🏼
I'll release this soon!

[darioackermann]

Thanks for your contributions, v. 7.1.0 was just published on npm