Not pulling in data for all fields

[lcrossley]

Examples where it's not pulling in tags:
https://medium.com/

Examples where it's not pulling in author:
https://www.saracollini.org/ (doesn't use tags)
https://news.ncsu.edu/

Examples where it's not pulling in tags or author:
https://earlyamericanists.com/
http://jfbratt.org/
https://www.hastac.org/ (tags aren't exposed, though)
https://txtlab.org/
https://blog.bham.ac.uk/clic-dickens/
https://digitalfellows.commons.gc.cuny.edu/

Examples where it's not pulling in tags, author, or preview image:
https://www.aaihs.org/
https://blog.une.edu.au/hasse/ (tags aren't exposed, though)
http://digitalhumanitiesnow.org/ usually pulls images into the Preview Image section but not for certain articles, for example:

• http://digitalhumanitiesnow.org/2018/11/editors-choice-how-21st-century-tech-can-shed-light-on-19th-century-newspapers/

• http://digitalhumanitiesnow.org/2018/11/documenting-and-digitizing-democracy-the-sncc-digital-gateway/

Examples where it's not pulling in the main text:
http://culturalanalytics.org/ (also not pulling in author)
https://www.theguardian.com/