Fix trusted-replace-xhr-response — breakage on music.youtube.com

[AdamWr]

Related to - AdguardTeam/AdguardFilters#160538 (comment)
AdguardTeam/AdguardFilters#161495
When few trusted-replace-xhr-response are used then music.youtube.com does not work correctly (happens only when logged in).

Steps to reproduce:

1. Add these rules:

youtube.com,youtubekids.com,youtube-nocookie.com#%#//scriptlet('trusted-replace-xhr-response', '/\"adSlots.*?\}\]\}\}\]\,/', '', '/player\?key=|watch\?v=/')
youtube.com,youtubekids.com,youtube-nocookie.com#%#//scriptlet('trusted-replace-xhr-response', '/\"playerAds.*?\}\}\]\,/', '', '/player\?key=|watch\?v=/')

2. Go to - https://music.youtube.com/
3. Sign in
4. Try to listen music

Error occurs.

Screenshot

[AdamWr]

It looks like that the problem is caused by adding multiple times the same value to header which causes an error:

Bad request: multiple values in X-Origin header are not allowed.

Screenshots