Observe-sequence error in legacy bundle

[nikparo]

With the latest observe-sequence package in a Meteor 2.2 app, IE complained about a syntax error - ; expected. (We still maintain a legacy bundle, though hopefully it's on its last legs)

As far as I can tell it's caused by line 170 in observe_sequence.js:

for(var item of value) {

Clearly ES5 doesn't support for-of, but I'm not sure whether this is a transpilation/configuration issue or whether the line should be changed.

[jankapunkt]

@StorytellerCZ you added bug label, is this a confirmed bug? I wonder if this rather might be a transpilation issue

[nikparo]

I'm just wondering, at what stage is the transpilation meant to happen? At least as a meteor user for several years I have never had to worry about transpiling meteor packages.

[filipenevola]

Hi @nikparo can you provide a reproduction? Maybe this case is not well tested in our regression tests.

Also, I'm going to transfer this issue to Meteor repo.