Fix HTML.isArray to work across frames.

[brucejo75]

Title says it all.

See issue #275.

Also, for reference I ran into a similar issue earlier in meteor that was resolved with pr meteor/meteor#8401. I learned the hard way to retain both forms of Array detection 😄 .

[brucejo75]

Looks like a build issue?

[CLAassistant]

All committers have signed the CLA.

[filipenevola]

Hi @brucejo75, do you want to have this PR merged yet?

If yes, please comment here so we can re-open, review and merge.

[brucejo75]

Sorry, yes I would like this merged... I will take another look if you can reopen.

[filipenevola]

@brucejo75 done.

[brucejo75]

@filipenevola, I think these are generic build errors? They have nothing to do with my fix... Is someone working on the Blaze regression tests?

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An error occurred in .circleci/config.yml

[filipenevola]

Yes, here #317

Blaze tests were using CircleCI 1.0 but it was deprecated.

[filipenevola]

Hi, tests are fixed on master. Please update your branch.

[brucejo75]

@filipenevola, looks like Blaze Tests succeeded but the 1st 2 checks (CLA, ci/circleci) are stuck?

[filipenevola]

@brucejo75 they were the old tests.