Pending Tx page is broken

[jwasinger]

To reproduce, make a transaction and then navigate to the endpoint /tx/pending. This is the error I'm seeing:

Error: METHOD_NOT_FOUND: The method being requested is not available on this server
    at Object.InvalidResponse (/home/jwasinger/projects/etherchain-light/node_modules/web3/lib/web3/errors.js:35:16)
    at /home/jwasinger/projects/etherchain-light/node_modules/web3/lib/web3/requestmanager.js:86:36
    at XMLHttpRequest.request.onreadystatechange (/home/jwasinger/projects/etherchain-light/node_modules/web3/lib/web3/httpprovider.js:118:13)
    at XMLHttpRequestEventTarget.dispatchEvent (/home/jwasinger/projects/etherchain-light/node_modules/xhr2/lib/xhr2.js:64:18)
    at XMLHttpRequest._setReadyState (/home/jwasinger/projects/etherchain-light/node_modules/xhr2/lib/xhr2.js:354:12)
    at XMLHttpRequest._onHttpResponseEnd (/home/jwasinger/projects/etherchain-light/node_modules/xhr2/lib/xhr2.js:509:12)
    at IncomingMessage.<anonymous> (/home/jwasinger/projects/etherchain-light/node_modules/xhr2/lib/xhr2.js:469:24)
    at emitNone (events.js:111:20)
    at IncomingMessage.emit (events.js:208:7)
    at endReadableNT (_stream_readable.js:1056:12)

It indicates that the explorer is using an RPC method that cpp-ethereum does not support.