Make injectionPointRegexp more bundler friendly

[philipwalton]

Addresses part of the issue in #1830. Specifically this section of the changes proposal.

[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	3.60 KB	+3%	1.56 KB
packages/workbox-broadcast-cache-update/build/workbox-broadcast-cache-update.prod.js	1.12 KB	1.88 KB	+68%	939 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	3.15 KB	-19%	1.29 KB	🎉
packages/workbox-cacheable-response/build/workbox-cacheable-response.prod.js	587 B	594 B	+1%	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	6.32 KB	-15%	2.85 KB	🎉
packages/workbox-navigation-preload/build/workbox-navigation-preload.prod.js	660 B	667 B	+1%	323 B
packages/workbox-precaching/build/workbox-precaching.prod.js	5.80 KB	5.27 KB	-9%	2.21 KB
packages/workbox-range-requests/build/workbox-range-requests.prod.js	1.63 KB	1.53 KB	-6%	764 B
packages/workbox-routing/build/workbox-routing.prod.js	2.87 KB	3.28 KB	+14%	1.43 KB	☠️
packages/workbox-strategies/build/workbox-strategies.prod.js	5.09 KB	4.76 KB	-7%	1.19 KB
packages/workbox-streams/build/workbox-streams.prod.js	1.57 KB	1.39 KB	-12%	683 B	🎉
packages/workbox-sw/build/workbox-sw.js	1.50 KB	1.51 KB	+1%	818 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	6.91 KB	-33%	2.40 KB	🎉

New Files

File	Size	GZipped
packages/workbox-google-analytics/build/workbox-offline-ga.prod.js	1.74 KB	877 B

All File Sizes

View Table

File	Before	After	Change	GZipped
packages/workbox-background-sync/build/workbox-background-sync.prod.js	3.51 KB	3.60 KB	+3%	1.56 KB
packages/workbox-broadcast-cache-update/build/workbox-broadcast-cache-update.prod.js	1.12 KB	1.88 KB	+68%	939 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	3.15 KB	-19%	1.29 KB	🎉
packages/workbox-cacheable-response/build/workbox-cacheable-response.prod.js	587 B	594 B	+1%	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	6.32 KB	-15%	2.85 KB	🎉
packages/workbox-google-analytics/build/workbox-offline-ga.prod.js		1.74 KB		877 B
packages/workbox-navigation-preload/build/workbox-navigation-preload.prod.js	660 B	667 B	+1%	323 B
packages/workbox-precaching/build/workbox-precaching.prod.js	5.80 KB	5.27 KB	-9%	2.21 KB
packages/workbox-range-requests/build/workbox-range-requests.prod.js	1.63 KB	1.53 KB	-6%	764 B
packages/workbox-routing/build/workbox-routing.prod.js	2.87 KB	3.28 KB	+14%	1.43 KB	☠️
packages/workbox-strategies/build/workbox-strategies.prod.js	5.09 KB	4.76 KB	-7%	1.19 KB
packages/workbox-streams/build/workbox-streams.prod.js	1.57 KB	1.39 KB	-12%	683 B	🎉
packages/workbox-sw/build/workbox-sw.js	1.50 KB	1.51 KB	+1%	818 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	6.91 KB	-33%	2.40 KB	🎉

Workbox Aggregate Size Plugin

9.9KB gzip'ed (66% of limit)
24.29KB uncompressed

[jeffposnick]

👍