[Speedreader] Failed to parse schema from @context in json+ld script.

[boocmp]

Description

Steps to Reproduce

Open https://www.theverge.com/2022/12/28/23529705/amazon-drone-delivery-prime-air-california-texas in reader mode.

Actual result:

No publishing date in the article header.

Expected result:

Date displayed if it is presented in json+ld.

Reproduces how often:

Easy 100%.

[stephendonner]

Verified PASSED using

Brave	1.49.88 Chromium: 110.0.5481.77 (Official Build) beta (x86_64)
Revision	65ed616c6e8ee3fe0ad64fe83796c020644d42af-refs/branch-heads/5481@{#839}
OS	macOS Version 11.7.3 (Build 20G1116)

(Reproduced in 1.48.157

Confirmed the date shows up now in 1.49.88, where it didn't before

1.48.157	1.49.88