ruby on rails - Javascript/Jasmine: ReferenceError: Can't find variable: Float64Array -

ruby on rails - Javascript/Jasmine: ReferenceError: Can't find variable: Float64Array -

i'm using rails, pretty new javascript , setting testframework test javascripts jasmine. here's situation:

i'm using viz.js in source, graphviz compiled js emscripten i'm using jasmine-rails jasmine builds browser however, jasmine:headless (which uses qt webdriver (im using qt version 4.8.1)), gives next error:

referenceerror: can't find variable: float64array coming viz.js

so question: can conclude there errors in qt's float64array? has emscripten done messy job? there workaround?

what environment? browser? emscripten build?

safari 5 , below not have float64array. update safari

also, if using emscripten box2d build, replace float64array usage in code float32array

edit:

also see link - https://github.com/kripken/box2d.js/issues/6

javascript ruby-on-rails qt4 jasmine emscripten