content script in gmail: RangeError: Invalid string length

[tomholub]

RangeError: Invalid string length
    at replace_armored_block_type (/js/common/common.js:1515:67)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)
    at replace_armored_block_type (/js/common/common.js:1516:12)

Somewhere here:

  function replace_armored_block_type(text, block_headers, end_required, block_processor, optional_search_after_index) {
    var begin_index = text.indexOf(block_headers.begin, optional_search_after_index);
    if(begin_index < 0) {
      return text;
    }
    var end_found = -1;
    var end_len = 0;
    if(typeof block_headers.end.exec === 'undefined') { // end defined by string
      end_found = text.indexOf(block_headers.end, begin_index);
      end_len = block_headers.end.length;
    } else {
      var regex_end_found = block_headers.end.exec(text);
      if(regex_end_found) {
        end_found = regex_end_found.index;
        end_len = regex_end_found[0].length;
      }
    }
    var end_index;
    if(end_found < 0) {
      if(end_required) {
        return text;
      } else {
        end_index = text.length - 1; // end not found + not required, get everything (happens for long clipped messages)
      }
    } else {
      end_index = end_found + end_len;
    }
    var block_replacement = '\n' + block_processor(text.substring(begin_index, end_index), end_found > 0) + '\n';
    var text_with_replaced_block = text.substring(0, begin_index) + block_replacement + text.substring(end_index, text.length);
    return replace_armored_block_type(text_with_replaced_block, block_headers, end_required, block_processor, begin_index + block_replacement.length);
  }

[tomholub]

String too big nodejs/node-v0.x-archive#14170

[tomholub]

horribly dated