Cache gtm.js runtime caching

[philipwalton]

R: @jeffposnick

A continuation of #1837. This also fixes #1751 for real.

[googlebot]

So there's good news and bad news.

👍 The good news is that everyone that needs to sign a CLA (the pull request submitter and all commit authors) have done so. Everything is all good there.

😕 The bad news is that it appears that one or more commits were authored or co-authored by someone other than the pull request submitter. We need to confirm that all authors are ok with their commits being contributed to this project. Please have them confirm that here in the pull request.

Note to project maintainer: This is a terminal state, meaning the cla/google commit status will not change from this state. It's up to you to confirm consent of all the commit author(s), set the cla label to yes (if enabled on your project), and then merge this pull request when appropriate.

[philipwalton]

/cc: @xMokAx

[jeffposnick]

👍

[workbox-pr-bot]

PR-Bot Size Plugin

Changed File Sizes

File	Before	After	Change	GZipped
packages/workbox-background-sync/build/workbox-background-sync.prod.js	3.51 KB	3.61 KB	+3%	1.56 KB
packages/workbox-broadcast-cache-update/build/workbox-broadcast-cache-update.prod.js	1.12 KB	1.88 KB	+68%	940 B	☠️
packages/workbox-build/build/index.js	4.02 KB	3.64 KB	-9%	1.36 KB
packages/workbox-cache-expiration/build/workbox-cache-expiration.prod.js	3.88 KB	3.14 KB	-19%	1.28 KB	🎉
packages/workbox-cli/build/app.js	6.76 KB	5.58 KB	-17%	1.98 KB	🎉
packages/workbox-cli/build/bin.js	2.32 KB	1.16 KB	-50%	580 B	🎉
packages/workbox-core/build/workbox-core.prod.js	7.47 KB	5.43 KB	-27%	2.36 KB	🎉
packages/workbox-precaching/build/workbox-precaching.prod.js	5.80 KB	4.20 KB	-28%	1.68 KB	🎉
packages/workbox-range-requests/build/workbox-range-requests.prod.js	1.63 KB	1.52 KB	-7%	763 B
packages/workbox-routing/build/workbox-routing.prod.js	2.87 KB	3.23 KB	+13%	1.42 KB	☠️
packages/workbox-strategies/build/workbox-strategies.prod.js	5.09 KB	4.87 KB	-4%	1.19 KB
packages/workbox-streams/build/workbox-streams.prod.js	1.57 KB	1.38 KB	-12%	684 B	🎉
packages/workbox-sw/build/workbox-sw.js	1.50 KB	1.36 KB	-10%	750 B
packages/workbox-webpack-plugin/build/generate-sw.js	8.04 KB	5.29 KB	-34%	1.84 KB	🎉
packages/workbox-webpack-plugin/build/index.js	742 B	349 B	-53%	255 B	🎉
packages/workbox-webpack-plugin/build/inject-manifest.js	10.30 KB	7.22 KB	-30%	2.48 KB	🎉

New Files

File	Size	GZipped
packages/workbox-google-analytics/build/workbox-offline-ga.prod.js	1.89 KB	891 B

All File Sizes

View Table

File	Before	After	Change	GZipped
packages/workbox-background-sync/build/workbox-background-sync.prod.js	3.51 KB	3.61 KB	+3%	1.56 KB
packages/workbox-broadcast-cache-update/build/workbox-broadcast-cache-update.prod.js	1.12 KB	1.88 KB	+68%	940 B	☠️
packages/workbox-build/build/_types.js	41 B	41 B	0%	61 B
packages/workbox-build/build/index.js	4.02 KB	3.64 KB	-9%	1.36 KB
packages/workbox-cache-expiration/build/workbox-cache-expiration.prod.js	3.88 KB	3.14 KB	-19%	1.28 KB	🎉
packages/workbox-cacheable-response/build/workbox-cacheable-response.prod.js	587 B	587 B	0%	350 B
packages/workbox-cli/build/app.js	6.76 KB	5.58 KB	-17%	1.98 KB	🎉
packages/workbox-cli/build/bin.js	2.32 KB	1.16 KB	-50%	580 B	🎉
packages/workbox-core/build/workbox-core.prod.js	7.47 KB	5.43 KB	-27%	2.36 KB	🎉
packages/workbox-google-analytics/build/workbox-offline-ga.prod.js		1.89 KB		891 B
packages/workbox-navigation-preload/build/workbox-navigation-preload.prod.js	660 B	660 B	0%	323 B
packages/workbox-precaching/build/workbox-precaching.prod.js	5.80 KB	4.20 KB	-28%	1.68 KB	🎉
packages/workbox-range-requests/build/workbox-range-requests.prod.js	1.63 KB	1.52 KB	-7%	763 B
packages/workbox-routing/build/workbox-routing.prod.js	2.87 KB	3.23 KB	+13%	1.42 KB	☠️
packages/workbox-strategies/build/workbox-strategies.prod.js	5.09 KB	4.87 KB	-4%	1.19 KB
packages/workbox-streams/build/workbox-streams.prod.js	1.57 KB	1.38 KB	-12%	684 B	🎉
packages/workbox-sw/build/workbox-sw.js	1.50 KB	1.36 KB	-10%	750 B
packages/workbox-webpack-plugin/build/generate-sw.js	8.04 KB	5.29 KB	-34%	1.84 KB	🎉
packages/workbox-webpack-plugin/build/index.js	742 B	349 B	-53%	255 B	🎉
packages/workbox-webpack-plugin/build/inject-manifest.js	10.30 KB	7.22 KB	-30%	2.48 KB	🎉

Workbox Aggregate Size Plugin

8.83KB gzip'ed (59% of limit)
22.28KB uncompressed