Vulcanizer Not Reducing Request Count?

Kelly St. John

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Nov 25, 2014, 7:42:52 PM11/25/14

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Any ideas what may cause vulcanizer to not reduce the number of requests for a polymer site? The original index.html and the outputted vulcanized.html are virtually identical despite there being one custom polymer element included within its <body> and a <template is="auto-binding"> tags. The custom element referenced, in turn, imports a number of custom polymer elements, which then in turn import others (both custom and normal core and paper elements), and so on. Currently, I am getting a request count of 130 with both versions in Chrome, and virtually identical load times (about 2 seconds).

Eric Bidelman

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Nov 25, 2014, 8:09:35 PM11/25/14

to Kelly St. John, polymer-dev

Check that you're running with:

vulcanize --inline --strip index.html -o vulcanized.html

That should inline all imports (and sub imports) into your main page, as well as inline any stylesheets or local JS. If you have other resources like images/css background images/xhrs/iframes, vulcanize won't remove those requests.

If you don't run vulcanize over index.html, check that you're actually importing the vulcanize.html version :)

On Tue, Nov 25, 2014 at 4:42 PM, Kelly St. John <ke...@qfin.net> wrote:

Any ideas what may cause vulcanizer to not reduce the number of requests for a polymer site? The original index.html and the outputted vulcanized.html are virtually identical despite there being one custom polymer element included within its <body> and a <template is="auto-binding"> tags. The custom element referenced, in turn, imports a number of custom polymer elements, which then in turn import others (both custom and normal core and paper elements), and so on. Currently, I am getting a request count of 130 with both versions in Chrome, and virtually identical load times (about 2 seconds).

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Kelly St. John

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Nov 26, 2014, 4:07:50 PM11/26/14

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Thanks Eric. Actually, it turned out that I needed to specify the site root path (-p argument), as index.html was located in a 'non-standard' location. However, I did use the --inline switch as well as per your advice. The result: 7 requests and 721 ms to load site. (compared to 131 requests and 2+seconds originally).

Kelly

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