only show error of import if import failed (fixes #119)
only show error of import if import failed (fixes #119)

roth1002/gopherjs,gopherjs/gopherjs,flimzy/gopherjs,gopherjs/gopherjs,Yanjing123/gopherjs,rasata/gopherjs,jargv/gopherjs,jeremyschlatter/gopherjs,jargv/gopherjs,Archs/gopherjs,govlas/gopherjs,govlas/gopherjs,jeremyschlatter/gopherjs,nmfzone/gopherjs,albrow/gopherjs,jargv/gopherjs,flimzy/gopherjs,bpowers/gopherjs,Archs/gopherjs,Yanjing123/gopherjs,ebroder/gopherjs,albrow/gopherjs,roth1002/gopherjs,Yanjing123/gopherjs,govlas/gopherjs,Archs/gopherjs,bpowers/gopherjs,rasata/gopherjs,nmfzone/gopherjs,rasata/gopherjs,flimzy/gopherjs,ebroder/gopherjs,ebroder/gopherjs,jeremyschlatter/gopherjs,albrow/gopherjs,bpowers/gopherjs,gopherjs/gopherjs,gopherjs/gopherjs,roth1002/gopherjs,nmfzone/gopherjs,gopherjs/gopherjs