My application is a GAE Standard Java app which uses AngularJS on client side.
My client code is minified in a JS file. I use the unicode character ✔ (\u2714) a few times in AngularJS Material Toasts. When I deploy my app using Eclipse, and access the app, inspecting the code I can see that every ✔ character has been converted to ✔.
I have tried to rewrite every ✔ by its unicode JavaScript representation (\u2714) but it doesn't work either.
What is breaking my code?
It seems it was related with Java version. Once I updated from using Java 7 to Java 8, the minified file was uploaded successfully.