It uses function that got renamed. Even though it's back in 2.1.90.1, it should be replaced with correct function as noted on [1].

  CC       libeabwidgets_la-eab-contact-formatter.lo
eab-contact-formatter.c: In function 'collapse_contacts_list':
eab-contact-formatter.c:1161:2: error: implicit declaration of function 'webkit_dom_html_element_get_id' [-Werror=implicit-function-declaration]
  id = webkit_dom_html_element_get_id (WEBKIT_DOM_HTML_ELEMENT (event_target));
  ^
eab-contact-formatter.c:1161:2: warning: nested extern declaration of 'webkit_dom_html_element_get_id' [-Wnested-externs]
eab-contact-formatter.c:1161:5: warning: assignment makes pointer from integer without a cast [enabled by default]
  id = webkit_dom_html_element_get_id (WEBKIT_DOM_HTML_ELEMENT (event_target));
     ^

[1] https://bugzilla.gnome.org/show_bug.cgi?id=707006