Set character encoding before writing any response (#11501)

Change-Id: I2a319d2b970d5d0953ece3717af17057c32f2041

1 files changed, 1 insertions, 1 deletions

diff --git a/WebContent/VAADIN/atmosphere.min.js b/WebContent/VAADIN/atmosphere.min.js
index 2cd5e3fb26..54968f4721 100644
--- a/WebContent/VAADIN/atmosphere.min.js
+++ b/WebContent/VAADIN/atmosphere.min.js
@@ -9,4 +9,4 @@
  * Licensed under the Apache License, Version 2.0
  * http://www.apache.org/licenses/LICENSE-2.0
  */
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