net/http: correct Content-Length parsing for js/wasm

The Content-Length was incorrectly set to 0 for ill-formed and invalid
values. In these cases, return an error.

If the Content-Length header was omitted, it was incorrectly set to 0.
In this case, set the Content-Length value to -1.

Fixes #49108

Change-Id: I24fe9a31ed5b6ddb53f2b2bd10f2c84e428823e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/358134
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
Trust: David Crawshaw <crawshaw@golang.org>
1 file changed
tree: e9d9f3b16f6b6d40671dcbf2ebc80a1d2758fe6b
  1. .gitattributes
  2. .github/
  3. .gitignore
  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.md
  10. SECURITY.md
  11. api/
  12. codereview.cfg
  13. doc/
  14. lib/
  15. misc/
  16. src/
  17. test/
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