Don't log JS errors from bot crawlers and unsupported browsers.
Don't log JS errors from bot crawlers and unsupported browsers.

njam/CM,fvovan/CM,christopheschwyzer/CM,zazabe/cm,fauvel/CM,alexispeter/CM,tomaszdurka/CM,mariansollmann/CM,christopheschwyzer/CM,njam/CM,cargomedia/CM,fauvel/CM,zazabe/cm,vogdb/cm,vogdb/cm,mariansollmann/CM,tomaszdurka/CM,mariansollmann/CM,fvovan/CM,mariansollmann/CM,zazabe/cm,cargomedia/CM,njam/CM,zazabe/cm,cargomedia/CM,tomaszdurka/CM,tomaszdurka/CM,alexispeter/CM,fvovan/CM,njam/CM,fvovan/CM,alexispeter/CM,vogdb/cm,alexispeter/CM,vogdb/cm,fauvel/CM,fauvel/CM,christopheschwyzer/CM,tomaszdurka/CM,njam/CM,vogdb/cm,fauvel/CM,cargomedia/CM,christopheschwyzer/CM