Relax response-body gating so HTML and XHTML can be buffered when
Transfer-Encoding is chunked-only, or when Content-Length is missing,
while still rejecting non-identity encodings that are not chunked HTML
and other non-HTML cases.
Update modifyHTML to cap reads for unknown length, splice the original
stream back when the cap is hit, and document the behavior in the
package README. Extend tests for themed middleware and the rewrite gate.
Replace the rewrite requirement check with a BodyResponseModifier
marker and treat header and body modifiers separately.
This ensures header/status rewrites still apply when body rewriting is
blocked (for binary, encoded, or chunked responses), while body changes
are skipped safely. It also avoids body reset/close side effects and
returns early on passthrough responses.
Update middleware tests to cover split header/body behavior and themed
middleware body-skip scenarios.
Prevent response modifiers that require body rewriting from running when
the body rewrite gate blocks buffering (for example, chunked transfer
encoding).
Add an explicit `requiresBodyRewrite` capability and implement it for
HTML/theme/error-page modifiers, including bypass delegation.
Also add a regression test to ensure the original response body remains
readable and is not closed prematurely when rewrite is blocked.
This commit fixeds the "http: read on closed response body" with empty page error
happens when body-rewriting middleware (like themed) runs on responses where body rewrite is blocked (e.g. chunked),
then the gate restores an already-closed original body.
- Remove BytesPoolWithMemory; split into UnsizedBytesPool and 11-tier SizedBytesPool
- Track buffer capacities with xsync Map to prevent capacity leaks
- Improve buffer reuse: split large buffers and put remainders back in pool
- Optimize small buffers to use unsized pool
- Expand test coverage and benchmarks for various allocation sizes
