🚨 Error: failed to attach shadow document for page: Cannot redefine property: body

[ampprojectbot]

Details

Error report: link
First seen: Apr 9, 2020
Frequency: ~ 3,123/day

Stacktrace

Error: failed to attach shadow document for page: Cannot redefine property: body
    at Object (src/shadow-embed.js:201:2)
    at importShadowBody (src/multidoc-manager.js:246:23)
    at builder (src/multidoc-manager.js:205:4)
    at attachShadowDoc_ (src/multidoc-manager.js:235:11)
    at attachShadowDoc (extensions/amp-next-page/1.0/service.js:573:18)
    at attachDocumentToPage (extensions/amp-next-page/1.0/page.js:252:11)
    at attach_ (extensions/amp-next-page/1.0/page.js:208:11)
    at page (extensions/amp-next-page/1.0/service.js:430:55)

Notes

@dvoytenko modified src/shadow-embed.js:201-201 in #7172 (Jan 25, 2017)
@wassgha modified src/multidoc-manager.js:232-273 in #25629 (Dec 10, 2019)
@wassgha modified src/multidoc-manager.js:189-230 in #25629 (Dec 10, 2019)
@wassgha modified src/multidoc-manager.js:232-273 in #25629 (Dec 10, 2019)
@wassgha modified extensions/amp-next-page/1.0/service.js:573-580 in #26296 (Jan 23, 2020)
@renovate-bot modified extensions/amp-next-page/1.0/service.js:430-430 in #27350 (Mar 30, 2020)

Seen in:

• 06-11 Beta (2352+1)
• 06-11 Experiment-B (2352+1)
• 06-11 Experimental (2352+1)
• 06-11 Nightly-Control (2352+1)
• 06-11 Stable (2352+1)
• 06-23 Nightly (0309)
• +8 more

Possible assignees: @wassgha, @dvoytenko

/cc @ampproject/release-on-duty