Walmart's website had major delays on Thursday, upsetting customers who were hoping to score deep discounts.<br />Walmart for the first time this year offered its Black Friday deals online.<br />The deals went live at 12:01 a.m. on Thanksgiving.<br />But many customers said they weren't able to shop for the items they wanted because of website delays.<br />Hundreds of customers wrote about their experiences on Walmart's Facebook page.<br />Walmart responded to many of the complaints with an apology, saying the website was overwhelmed by a surge in traffic.