Replace regexp to plain string for optimization render HTML

[NOCELL]

Bug

Line const [renderTargetPrefix, renderTargetSuffix] = documentHTML.split(*) with RegExp almost 80 times slower than a plain string.

Before:

After:

[timneutkens]

Good catch, thanks!

The PR will be auto-merged now so please don't click update branch as it'll stop that from happening 🙏

[ijjk]

Stats from current PR

Default Build (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	NOCELL/next.js canary	Change
buildDuration	17.2s	17.4s	⚠️ +173ms
buildDurationCached	3.9s	3.8s	-19ms
nodeModulesSize	352 MB	352 MB	⚠️ +1 B

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	NOCELL/next.js canary	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.464	3.506	⚠️ +0.04
/ avg req/sec	721.72	713.09	⚠️ -8.63
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.584	1.675	⚠️ +0.09
/error-in-render avg req/sec	1577.84	1492.91	⚠️ -84.93

Client Bundles (main, webpack, commons)

	vercel/next.js canary	NOCELL/next.js canary	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	27.2 kB	27.2 kB	✓
webpack-HASH.js gzip	1.44 kB	1.44 kB	✓
Overall change	71 kB	71 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	NOCELL/next.js canary	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	NOCELL/next.js canary	Change
_app-HASH.js gzip	1.37 kB	1.37 kB	✓
_error-HASH.js gzip	194 B	194 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	326 B	326 B	✓
dynamic-HASH.js gzip	2.37 kB	2.37 kB	✓
head-HASH.js gzip	350 B	350 B	✓
hooks-HASH.js gzip	919 B	919 B	✓
image-HASH.js gzip	4.7 kB	4.7 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	2.13 kB	2.13 kB	✓
routerDirect..HASH.js gzip	321 B	321 B	✓
script-HASH.js gzip	383 B	383 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	14.1 kB	14.1 kB	✓

Client Build Manifests

	vercel/next.js canary	NOCELL/next.js canary	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	NOCELL/next.js canary	Change
index.html gzip	531 B	531 B	✓
link.html gzip	545 B	545 B	✓
withRouter.html gzip	526 B	526 B	✓
Overall change	1.6 kB	1.6 kB	✓

---

Default Build with SWC (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	NOCELL/next.js canary	Change
buildDuration	18.9s	18.9s	⚠️ +39ms
buildDurationCached	3.9s	3.8s	-51ms
nodeModulesSize	352 MB	352 MB	⚠️ +1 B

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	NOCELL/next.js canary	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.537	3.527	-0.01
/ avg req/sec	706.76	708.84	+2.08
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.639	1.723	⚠️ +0.08
/error-in-render avg req/sec	1525.69	1451.12	⚠️ -74.57

Client Bundles (main, webpack, commons)

	vercel/next.js canary	NOCELL/next.js canary	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.3 kB	42.3 kB	✓
main-HASH.js gzip	27.3 kB	27.3 kB	✓
webpack-HASH.js gzip	1.44 kB	1.44 kB	✓
Overall change	71.3 kB	71.3 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	NOCELL/next.js canary	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	NOCELL/next.js canary	Change
_app-HASH.js gzip	1.35 kB	1.35 kB	✓
_error-HASH.js gzip	180 B	180 B	✓
amp-HASH.js gzip	305 B	305 B	✓
css-HASH.js gzip	321 B	321 B	✓
dynamic-HASH.js gzip	2.36 kB	2.36 kB	✓
head-HASH.js gzip	342 B	342 B	✓
hooks-HASH.js gzip	911 B	911 B	✓
image-HASH.js gzip	4.73 kB	4.73 kB	✓
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	2.19 kB	2.19 kB	✓
routerDirect..HASH.js gzip	314 B	314 B	✓
script-HASH.js gzip	375 B	375 B	✓
withRouter-HASH.js gzip	309 B	309 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	14.1 kB	14.1 kB	✓

Client Build Manifests

	vercel/next.js canary	NOCELL/next.js canary	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	NOCELL/next.js canary	Change
index.html gzip	531 B	531 B	✓
link.html gzip	545 B	545 B	✓
withRouter.html gzip	526 B	526 B	✓
Overall change	1.6 kB	1.6 kB	✓

Commit: 6ab6b09