405 Not Allowed < Top 100 ULTIMATE >

"I’d like to this letter into the library's collection," Eli said, sliding a sealed envelope toward the slot.

"If you want to leave something," the clerk explained, "you need to go to the . That building accepts the POST method. Here, we only let people look." 405 Not Allowed

"The library is right here," the clerk droned, pointing to the shelves of books behind him. "You’ve got the right place. But this is an . It is a read-only establishment. You can GET a book, you can HEAD a title, but you cannot POST a letter here. We simply don't allow that method of interaction." "But I have to leave this letter!" Eli insisted. "I’d like to this letter into the library's

Eli, a young traveler, stood before the heavy oak doors of the . He had a simple task: he wanted to leave a letter for a friend. He walked up to the reception desk, where a clerk sat behind a glass partition. Here, we only let people look

For a quick technical breakdown of why this error happens in the real world, check out this summary:

"I don't understand," Eli said. "Is the library closed? Is the address wrong?"