Although very common, bash is not guaranteed to be located at
`/bin/bash`. NixOS is an example of this.
More commonly, `/bin/bash` can be quite out of date. An example of this
is MacOS's version of `bash`. This realistically won't affect Playwright
but it's worth noting. You can technically update MacOS's system version
of bash but you need elevated permissions to do so.
By using `/usr/bin/env bash` instead of `/bin/bash` we can execute
Playwright's bash scripts in like NixOS and generally improve the
selection behaviour for bash in other systems too.
Some discussion of why it's worth favouring `/usr/bin/env bash` over
`/bin/bash`:
- Discusses `/bin/bash` missing in NixOS:
https://discourse.nixos.org/t/add-bin-bash-to-avoid-unnecessary-pain/5673
- Some general commentary on why `/usr/bin/env bash` is favoured:
https://askubuntu.com/a/1402721
- Points out how old bash is in MacOS:
https://itnext.io/upgrading-bash-on-macos-7138bd1066ba
Improves situation at #5501
It may happen that reload leads to a cross-origin redirect. This PR adds instrumentation to the policy check that triggers new web process creation and allows the client side properly track the navigation progress after reload.
Pretty-diff: 753967002c
References: #16147
Patch by @dpino
Fixes the following error on Ubuntu 18:
```
[716/8153] Linking CXX shared library lib/libmbmalloc.so
FAILED: lib/libmbmalloc.so
: && <CXX> -fPIC -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-odr -Wno-stringop-overflow -Wno-nonnull -Wno-array-bounds -Wno-expansion-to-defined -Wno-noexcept-type -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-ari>
/usr/bin/ld: Source/bmalloc/CMakeFiles/bmalloc.dir/libpas/src/libpas/pas_deallocate.c.o: relocation R_X86_64_PC32 against symbol `pas_segregated_page_deallocation_did_fail' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value
```
Pretty-diff: a479046919
It was recently enabled by default upstream 461deb6c6d
We have this feature disabled in Chromium as we want the iframes to be eagerly loaded to avoid clients' confusion. This PR disables it back in WebKit too.
Pretty-diff: 7aad962e5d
